Posted October 2005 - this information is "posted" by Apparel Search, but it has not been created by Apparel Search. This may be dated material and you should not rely on this list to be the most current listing of this information.  We suggest that if you require the most current and accurate information, you communicate directly with the United States Patent and Trademark Office.
The Following File was produced by USPTO - SIRA - Office of Patent Automation - Reference Tools Project

Contact: United States Patent and Trademark Office - Classification Operations Crystal Park 3, Suite 902 Washington, DC 20231 phone: (703) 305-5107

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    301 Including strand which is stated to have specific attributes (e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous composition, water solubility, heat shrinkability, etc.):
  This subclass is indented under subclass 181.  Subject matter wherein the woven fabric contains a strand which has attributes such as heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc., the strand attributes being specifically stated.
  (1) Note. Inherent properties of a given strand or fiber material should not be considered for classification purposes in this subclass, only specifically stated properties of the strand or fiber material.
   
    302 Strand is other than glass and is heat or fire resistant:
  This subclass is indented under subclass 301.  Subject matter wherein the strand which is not glass is heat or fire resistant.
   
    303 Strand is heat shrinkable:
  This subclass is indented under subclass 301.  Subject matter wherein the strand shrinks when exposed to heat.
   
    304 KNIT fabric (I.E., KNIT STRAND OR STRIP MATERIAL):
  This subclass is indented under the class definition.  Subject matter wherein the fabric is a knit fabric composed of strands or strips interengaged with one another to form interlocked loops of strand material, the interlocked loops forming wales and courses in the knit fabric.

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66,  Textiles: Knitting,   for knitted fabrics made solely by a knitting process without any other fabric processing prior to or following knitting.
428,  Stock Material or Miscellaneous Articles,   subclasses 34.1+ for hollow or container type articles (e.g., tube, vase, etc.) containing at least one knit fabric; subclasses 105+ for knit fabrics wherein strands or strips thereof are disposed in angular relation to strands or strips in a second layer or component; subclass 114 for knit fabrics wherein strands or strips thereof are arranged in parallel relation to strands or strips in a second layer or component; subclasses 175+ for a product of uniform thickness but of nonplanar characteristics and comprising interengaged strands or strips; and subclass 196 for knit fabrics with a discontinuous coating, impregnation, or bond.
   
    305 Including parallel strips:
  This subclass is indented under subclass 304.  Subject matter wherein parallel strips are incorporated into the knitted fabric.
  (1) Note. A strip is an elongated element having a width which substantially exceeds its thickness.
   
    306 Including an elastic strand:
  This subclass is indented under subclass 304.  Subject matter wherein a strand or strip or a filamentary component of a strand or strip of which the fabric is composed is characterized by elastic qualities (e.g., it is formed of or has a core of elastomeric polymeric material, etc.).

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308, For fabrics composed of a non-elastomeric core-spun strand.

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57,  Textiles: Spinning, Twisting, and Twining,   subclass 225 and 226 for elastomeric core-spun yarns, per se.
   
    307 Including strand precoated with other than free metal or alloy:
  This subclass is indented under subclass 304.  Subject matter comprising a strand which has been coated with a non-metallic material prior to incorporation into the knit fabric.
   
    308 Including strand which is of specific structural definition:
  This subclass is indented under subclass 304.  Subject matter wherein the fabric comprises (a) strands having a specified structural characteristic such as being composed of individual filaments having different chemical composition twisted together or being core-spun about elastic core or (b) the strands, per se, or individual filamentary materials comprising the strands are characterized by a specific structural feature such as nonlinearity, a particular cross section or a particular absolute size of any feature, component, or dimension (e.g., length, width, or thickness).

SEE OR SEARCH CLASS:

57,  Textiles: Spinning, Twisting, and Twining,   subclasses 224 through 230 For core-spun yarns, per se.
   
    309 Cross-sectional configuration of strand material is specified:
  This subclass is indented under subclass 308.  Subject matter wherein the cross-sectional shape of the strand material or a filamentary constituent thereof is specified or of continuously uniform diameter or of a particular nature or specified shape or dimension.

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428,  Stock Material or Miscellaneous Articles,   subclasses 397 through 402 For strand materials having, per se, particular cross sections or physical dimensions.
   
    310 Strand material formed of individual filaments having different chemical compositions:
  This subclass is indented under subclass 308.  Subject matter wherein the strand material is composed of at least two chemically different individual filaments.
   
    311 Strand is a monofilament composed of two or more polymeric materials in physically distinct relationship (e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.) or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material:
  This subclass is indented under subclass 304.  Subject matter wherein the strand material, per se, or a filamentary constituent thereof is composed of (a) two or more synthetic polymeric materials which are specified as being in sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, or any other physically distinct relationship across a cross section thereof, (b) a physical blend of two or more polymeric materials specifically disclosed and/or claimed as having distinctly different chemical or physical characteristics, or (c) a blend or an admixture of a polymeric material and a filler material.

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428,  Stock Material or Miscellaneous Articles,   subclass 372 for strands and filaments, per se, in combination with structurally defined particulate matter; and subclasses 373 and 374 for multicomponent strands and filaments, per se.
   
    312 Knit fabric is characterized by a particular or differential knit pattern other than open knit fabric or a fabric in which the strand denier is specified:
  This subclass is indented under subclass 304.  Subject matter wherein a characteristic of the fabric knit pattern is specified other than the strand denier or an open knit fabric.

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1, For an open knit fabric.

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66,  Textiles: Knitting,   for knitted fabrics made solely by a knitting process without any other fabric processing prior to or following knitting.
   
    313 Including additional strand inserted within knit fabric:
  This subclass is indented under subclass 312.  Subject matter wherein the knit pattern includes additional strand within the knit fabric, the additional strand being inserted in the knit fabric to form a warp-inserted and/or weft-inserted knit fabric.
   
    314 Warp knit insert strand:
  This subclass is indented under subclass 313.  Subject matter wherein the additional strand is inserted within the knit fabric to form a warp-inserted knit fabric.
   
    315 Including a foamed layer or component:
  This subclass is indented under subclass 304.  Subject matter including a component or layer specified as being a foam (i.e., a material characterized by a multitude of open or closed cells).
   
    316 Including a free metal or alloy constituent:
  This subclass is indented under subclass 304.  Subject matter having a constituent which is a metal in elemental or alloy form (i.e., other than in the form of a chelate, salt, or compound resulting from the chemical reaction of a metal).
  (1) Note. Classified here is, for example, a knit fabric wherein (a) the fabric has been provided with a metal coating, (b) the fabric is composed of a strand comprising elemental metal, and (c) a metal layer having structural integrity has been adhesively associated with the fabric layer.

SEE OR SEARCH CLASS:

66,  Textiles: Knitting,   subclass 202 for metal-containing fabrics formed solely from a knitting process and no other process prior to or following knitting.
   
    317 Chemically deposited metal layer (e.g., chemical precipitation or electrochemical deposition or plating, etc.):
  This subclass is indented under subclass 316.  Subject matter wherein the metal constituent is in the form of a distinct layer provided by a chemical or electrochemical process such as chemical precipitation, electrochemical deposition, or plating.
   
    318 Including an additional knit fabric layer:
  This subclass is indented under subclass 304.  Subject matter wherein the knit fabric is in association with an additional knit fabric layer.
   
    319 Including a nonwoven fabric layer other than paper:
  This subclass is indented under subclass 304.  Subject matter wherein the knit fabric is in association with a nonwoven fabric which is not paper.
   
    320 FELT fabric:
  This subclass is indented under the class definition.  Subject matter wherein the fabric comprises fibers having barbs or some other laterally extending fiber portion, the fibers being worked together by pressure, heat, or some other means without weaving or knitting to form a sheet having structural integrity due to the interlocking of the barb-like extensions on the fibers.

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428,  Stock Material or Miscellaneous Articles,   subclasses 141+ for a textured surface, such as roofing elements, comprising asphalt impregnated felt fabric substrates with particulate matter thereon.
   
    321 From natural organic fiber (e.g., wool, etc.):
  This subclass is indented under subclass 320.  Subject matter wherein the fibers include natural organic fibers such as wool, etc.
   
    322 Including particulate material other than fiber:
  This subclass is indented under subclass 321.  Subject matter wherein the fabric contains particulate material which is not fiber.
   
    323 At least three layers:
  This subclass is indented under subclass 321.  Subject matter wherein the fabric comprises at least two additional distinct layers.
   
    324 From synthetic organic fiber:
  This subclass is indented under subclass 320.  Subject matter wherein the fibers include synthetic organic fibers.
   
    325 Including particulate material other than fiber:
  This subclass is indented under subclass 320.  Subject matter wherein the fabric contains particulate material which is not fiber.
   
   326 At least three layers:
  This subclass is indented under subclass 320.  Subject matter wherein the fabric comprises at least two additional distinct layers.
   
    327 NONWOVEN fabric (I.E., NONWOVEN STRAND OR fiber MATERIAL):
  This subclass is indented under the class definition.  Subject matter wherein the fabric comprising a fabric assembly having structural integrity of continuous or discontinuous strands or fibers held together in random or ordered (e.g., parallel, etc.) array by (a) mechanical interlocking (e.g., as a consequence of needling or hydroentangling, etc.) in the case of thermoplastic fibers, heat-induced bonding (i.e., fusing), or (b) an impregnation or coating of a bonding agent.
  (1) Note. Paper or felt are not to be considered as nonwoven fabrics for classification here.

SEE OR SEARCH CLASS:

28,  Textiles: Manufacturing,   subclasses 103 through 115 For nonwoven fabrics made solely by a fiber entanglement or interlocking process without any other fabric processing prior to or following the entanglement or interlocking process.
156,  Adhesive Bonding and Miscellaneous Chemical Manufacture,   subclass 180 and 181 for processes used to form nonwoven fabrics comprising thermoplastic fibers (i.e., heat-induced bonding).
162,  Paper Making and fiber Liberation,   subclasses 100 through 231For paper products made by a papermaking process without the addition of an additional fabric layer (i.e., woven, knit, or nonwoven fabric layer).
428,  Stock Material or Miscellaneous Articles,   subclasses 34.1+ for hollow or container type articles (e.g., tube, vase, etc.) containing nonwoven fabric; subclasses 174+ for a nonwoven product of uniform thickness but of nonplanar characteristics; and subclasses 195+ for nonwoven fabrics with a discontinuous coating, impregnation, or bond.
   
    328 Nonwoven fabric has an elastic quality:
  This subclass is indented under subclass 327.  Subject matter wherein the fabric has an ability to recover substantially its original shape and size immediately after removal of deformation or elongation causing stress.
   
    329 Nonwoven fabric comprises an elastic strand or fiber material:
  This subclass is indented under subclass 328.  Subject matter wherein a strand or filamentary constituent thereof or fiber material of which the fabric is composed is characterized by elastic qualities (e.g., it is formed of or has a core of elastomeric polymeric material, etc.).

SEE OR SEARCH THIS CLASS, SUBCLASS:

334, For fabrics composed of a non-elastomeric core-spun strand or fiber material.

SEE OR SEARCH CLASS:

57,  Textiles: Spinning, Twisting, and Twining,   subclass 225 and 226 for elastomeric core-spun yarns, per se.
   
    330 Including strand or fiber material precoated with other than free metal or alloy:
  This subclass is indented under subclass 327.  Subject matter comprising a strand or fiber material which had been coated with a nonmetallic material prior to fabric assembly.
   
    331 Strand or fiber material is glass:
  This subclass is indented under subclass 330.  Subject matter wherein the strand or fiber material is glass.
   
    332 Strand or fiber material is inorganic:
  This subclass is indented under subclass 330.  Subject matter wherein the strand or fiber material is inorganic material.
   
    333 Strand or fiber material is synthetic polymer:
  This subclass is indented under subclass 330.  Subject matter wherein the strand or fiber material is synthetic polymeric material.
   
    334 Including strand or fiber material which is of specific structural definition:
  This subclass is indented under subclass 327.  Subject matter wherein the fabric comprises (a) strand or fiber material having a specific structural characteristic such as being composed of individual filaments having different chemical composition twisted together or being core-spun about a non-elastic core or (b) the strand or fiber material, per se, or individual filamentary material comprising the strand are characterized by a specific structural feature such as nonlinearity, a particular cross section, or a particular absolute size of any feature, component, or dimension (e.g., length, width, or thickness).

SEE OR SEARCH CLASS:

57,  Textiles: Spinning, Twisting, and Twining,   subclasses 224 through 230 For core-spun yarns, per se.
   
    335 Cross-sectional configuration of strand or fiber material is specified:
  This subclass is indented under subclass 334.  Subject matter wherein the cross-sectional shape of the strand or a filamentary constituent thereof or the fiber material is specified or of continuously uniform diameter or of a particular nature or specified shape or dimension.

SEE OR SEARCH CLASS:

428,  Stock Material or Miscellaneous Articles,   subclasses 397 through 402 For strand materials having, per se, particular cross sections or physical dimensions.
   
    336 Cross-sectional configuration varies longitudinally along strand or fiber material:
  This subclass is indented under subclass 335.  Subject matter wherein the cross section of the strand or a filamentary constituent thereof or the fiber material changes along the length thereof either in dimension or shape.

SEE OR SEARCH CLASS:

428,  Stock Material or Miscellaneous Articles,   subclass 399 for longitudinally varying strands, per se.
   
    337 Cross-sectional configuration of strand or fiber material is other than circular:
  This subclass is indented under subclass 335.  Subject matter wherein the cross-sectional configuration of the strand or a filamentary constituent thereof or the fiber material is specified, not being circular.
   
    338 Hollow strand or fiber material:
  This subclass is indented under subclass 335.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material is tubular or hollow or characterized by one or more voids either co-extensive or non-coextensive along the length thereof.

SEE OR SEARCH CLASS:

428,  Stock Material or Miscellaneous Articles,   subclass 398 for hollow strand material, per se.
   
    339 Microcellular strand or fiber material:
  This subclass is indented under subclass 335.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material is microcellular in structure.
   
    340 Strand or fiber material specified as having micro dimensions (i.e., microfiber):
  This subclass is indented under subclass 334.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material is specified as having a diameter of less than 100 microns or is specified as microfibers.
   
    341 Strand or fiber material is blended with another chemically different microfiber in the same layer:
  This subclass is indented under subclass 340.  Subject matter wherein the strand or filamentary constituent thereof or the fiber material is blended with additional microfiber to form a single layer, the additional microfiber being chemically different.
   
    342 Blend of synthetic polymeric and inorganic microfibers:
  This subclass is indented under subclass 341.  Subject matter wherein the single fabric layer comprises synthetic polymeric microfiber and inorganic microfiber.
   
    343 Blend of chemically different inorganic microfibers:
  This subclass is indented under subclass 341.  Subject matter wherein the single fabric layer comprises at least two inorganic microfibers which are chemically different from one another.
   
    344 Including other strand or fiber material in the same layer not specified as having micro dimensions:
  This subclass is indented under subclass 340.  Subject matter wherein a single layer contains a strand or a filamentary constituent thereof or a fiber material of micro dimensions blended with another strand or fiber material.
   
    345 Including another chemically different microfiber in a separate layer:
  This subclass is indented under subclass 340.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material is combined with a separate layer which contains a chemically different microfiber.
   
    346 Including other strand or fiber material in a different layer not specified as having micro dimensions:
  This subclass is indented under subclass 340.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material is combined with a separate layer which contains other strand or fiber material.
   
    347 Microfiber is a composite fiber:
  This subclass is indented under subclass 340.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material specified as having micro dimensions is a composite microfiber.
   
    348 Microfiber is glass:
  This subclass is indented under subclass 340.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material is glass.
   
    349 Microfiber is carbon or carbonaceous:
  This subclass is indented under subclass 340.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material is a carbon (graphite) or carbonaceous microfiber.
   
    350 Autogenously bonded:
  This subclass is indented under subclass 340.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material is autogenously bonded (i.e., having heat- and/or pressure-promoted thermoplastic welding or solvent bonding).
   
    351 Microfiber is synthetic polymer:
  This subclass is indented under subclass 340.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material is a synthetic polymeric microfiber.
   
    352 Strand or fiber material is specified as nonlinear (e.g., crimped, coiled, etc.):
  This subclass is indented under subclass 334.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material is specified as being crimped, coiled, etc.
   
    353 Composite strand or fiber material:
  This subclass is indented under subclass 352.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material comprises two or more chemically distinct components.
   
    354 Carbon or carbonaceous strand or fiber material:
  This subclass is indented under subclass 352.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material comprises carbon (graphite) or carbonaceous material.
   
    355 Glass strand or fiber material:
  This subclass is indented under subclass 352.  Subject matter wherein the strand or a filamentary constituent thereof or the fiber material comprises glass material.
   
    356 A single nonwoven layer comprising nonlinear synthetic polymeric strand or fiber material and strand or fiber material not specified as nonlinear:
  This subclass is indented under subclass 352.  Subject matter wherein the strand or a filamentary constituent thereof or fiber material which is specifically stated to be nonlinear comprises a synthetic polymeric material and is combined with an additional strand or fiber material which is not specified as nonlinear to form a single layer.
   
    357 Synthetic polymeric strand or fiber material is of staple length:
  This subclass is indented under subclass 356.  Subject matter wherein the strand or a filamentary constituent thereof or fiber material which is specifically stated to be nonlinear comprises staple length material.
   
    358 A nonwoven fabric having a layer comprising nonlinear synthetic polymeric strand or fiber material and a separate and distinct layer comprising strand or fiber material which is not specified as nonlinear:
  This subclass is indented under subclass 352.  Subject matter wherein the strand or a filamentary constituent thereof or fiber material which is specifically stated to be nonlinear comprises a synthetic polymeric material and is combined with at least one additional separate and distinct layer of strand or fiber material which is not being specified as nonlinear.
   
    359 Synthetic polymeric strand or fiber material:
  This subclass is indented under subclass 352.  Subject matter wherein the strand or a filamentary constituent thereof or fiber material which is specifically stated to be nonlinear comprises a synthetic polymeric material.
   
    360 Synthetic polymeric strand or fiber material is of staple length:
  This subclass is indented under subclass 359.  Subject matter wherein the strand or a filamentary constituent thereof or fiber material which is specifically stated to be nonlinear comprises a staple length synthetic polymeric material.
   
    361 Including strand or fiber material which is a monofilament composed of two or more polymeric materials in physically distinct relationship (e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.) or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material:
  This subclass is indented under subclass 327.  Subject matter wherein the strand or fiber material, per se, is a monofilament composed of (a) two or more synthetic polymeric materials which are specified as being in sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, or any other physically distinct relationship across a cross section thereof, (b) a physical blend of two or more polymeric materials specifically disclosed and/or claimed as having distinctly different chemical or physical characteristics, or (c) a blend or an admixture of a polymeric material and a filler material.

SEE OR SEARCH CLASS:

428,  Stock Material or Miscellaneous Articles,   subclass 372 for strand or fiber material containing structurally defined particulate material, per se; and subclasses 373 and 374 for multicomponent strands and filaments, per se.
   
    362 Side-by-side multicomponent strand or fiber material:
  This subclass is indented under subclass 361.  Subject matter wherein the strand or fiber material contains two or more synthetic polymeric materials, the polymeric materials being in a side-by-side relationship across a cross section thereof.

SEE OR SEARCH CLASS:

428,  Stock Material or Miscellaneous Articles,   subclass 374 for a side-by-side filament or strand, per se.
   
    363 Islands-in-sea multicomponent strand or fiber material:
  This subclass is indented under subclass 361.  Subject matter wherein the strand or fiber material is characterized by two or more distinct polymeric materials in an islands-in-sea distinct physical relationship across a cross section thereof.

SEE OR SEARCH CLASS:

428,  Stock Material or Miscellaneous Articles,   subclass 374 for an island-in-sea filament or strand, per se.
   
    364 Sheath-core multicomponent strand or fiber material:
  This subclass is indented under subclass 361.  Subject matter wherein the strand or fiber material contains two or more synthetic polymeric materials which are in a sheath-core relationship across a cross section thereof.

SEE OR SEARCH CLASS:

428,  Stock Material or Miscellaneous Articles,   subclass 373 for a sheath-core filament or strand, per se.
   
    365 Strand or fiber material is a blend of polymeric material and a filler material:
  This subclass is indented under subclass 361.  Subject matter wherein the strand or fiber material comprises a blend or admixture of a synthetic polymeric material and one or more specified filler materials.

SEE OR SEARCH CLASS:

428,  Stock Material or Miscellaneous Articles, subclass 372 for a strand or fiber material containing structurally defined particulate material, per se.
   
    366 Including parallel strand or fiber material within the nonwoven fabric:
  This subclass is indented under subclass 327.  Subject matter wherein the nonwoven fabric comprises strand or fiber material which has been oriented in a particular direction, the strand or fiber material being parallel to one another.
   
    367 Parallel strand or fiber material is glass:
  This subclass is indented under subclass 366.  Subject matter wherein the parallel strand or fiber material within the nonwoven fabric is glass material.
   
    368 Parallel strand or fiber material is inorganic (e.g., rock wool, mineral wool, etc.):
  This subclass is indented under subclass 366.  Subject matter wherein the parallel strand or fiber material within the nonwoven fabric is inorganic material.
   
    369 Parallel strand or fiber material is naturally occurring (e.g., cotton, wool, etc.):
  This subclass is indented under subclass 366.  Subject matter wherein the parallel strand or fiber material within the nonwoven fabric is naturally occurring material such as cotton, wool, etc.
   
    370 Including a foamed layer or component:
  This subclass is indented under subclass 327.  Subject matter including a component or layer specified as being a foam (i.e., a material characterized by a multitude of open or closed cells).

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