| Class 442 | FABRIC (WOVEN, KNITTED, OR NONWOVEN TEXTILE OR CLOTH, ETC.) |
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| This Class 442 is considered to be an integral part of Class 428 (see the Class 428 schedule for the position of this Class in schedule hierarchy). This Class retains all pertinent definitions and class lines of Class 428. | ||
![[List of Pre Grant Publications for class 442 subclass 1]](../as.gif) | ![[List of Patents for class 442 subclass 1]](../ps.gif) | 1 | SCRIM (E.G., OPEN NET OR MESH, GAUZE, LOOSE OR OPEN WEAVE OR KNIT, ETC.) |
| | 2 |  Woven scrim |
| | 3 |  Including a multifilament fiber precoated with other than free metal or alloy prior to weaving |
| | 4 | Comprising a composite fiber |
| | 5 | Comprising at least two chemically different fibers |
| | 6 | Metal or metal-coated fiber-containing scrim |
| | 7 |  Including an additional free metal or alloy constituent |
| | 9 | Including a foam layer |
| | 10 | Including a woven fabric which is not a scrim |
| | 12 | Including a paper layer |
| | 13 | Including a nonwoven fabric which is not a scrim |
| | 15 | Including a natural or synthetic rubber layer |
| | 16 | Including a preformed film, foil, or sheet |
| | 17 | Including a layer derived from a water-settable material (e.g., cement, gypsum, etc.) |
| | 18 | Including a ceramic or glass layer |
| | 19 | Including a coating or impregnation of synthetic polymeric material |
| | 20 | Inorganic fiber-containing scrim |
| | 21 | Including a carbon or carbonized fiber |
| | 22 | Including a foam layer |
| | 23 | Including a metal layer |
| | 24 | Including an additional scrim layer |
| | 25 | Including a woven fabric which is not a scrim |
| | 26 | Including a nonwoven fabric which is not a scrim |
| | 27 | Including a preformed film, foil, or sheet |
| | 28 | Including a mica layer |
| | 29 | Including a coating or impregnation containing particulate material other than fiber |
| | 30 | Including a foam layer |
| | 31 | Including a free metal or alloy constituent |
| | 32 | Including an additional scrim layer |
| | 33 | Including a paper layer |
| | 35 | Including a nonwoven fabric which is not a scrim |
| | 37 | Including a natural or synthetic rubber layer |
| | 38 | Including a preformed film, foil, or sheet |
| | 39 | Cellulose acetate film or sheet |
| | 40 | Fluorinated polyolefin film or sheet |
| | 41 | Polyolefin film or sheet |
| | 42 | Including a layer derived from a water-settable material (e.g., cement, gypsum, etc.) |
| | 43 | Coated or impregnated |
| | 44 | Including particulate material other than fiber in coating or impregnation |
| | 45 | Three or more layers |
| | 46 | Synthetic polymeric fiber |
| | 48 | Bitumen coating or impregnation |
| | 49 | Synthetic polymeric fiber |
| | 50 | Nonwoven scrim |
| | 59 | COATED OR IMPREGNATED WOVEN, KNIT, OR NONWOVEN FABRIC WHICH IS NOT (A) ASSOCIATED WITH ANOTHER PREFORMED LAYER OR FIBER LAYER OR, (B) WITH RESPECT TO WOVEN AND KNIT, CHARACTERIZED, RESPECTIVELY, BY A PARTICULAR OR DIFFERENTIAL WEAVE OR KNIT, WHEREIN THE COATING OR IMPREGNATION IS NEITHER A FOAMED MATERIAL NOR A FREE METAL OR ALLOY LAYER |
| | 60 | Fabric composed of a fiber or strand which is of specific structural definition |
| | 61 | Impregnation is confined to a plane disposed between both major fabric surfaces which are essentially free of impregnating material |
| | 62 | Coating produced by extrusion |
| | 63 | Coating or impregnation formed in situ (e.g., by interfacial condensation, coagulation, precipitation, etc.) |
| | 64 | Two or more non-extruded coatings or impregnations |
| | 65 | Each major face of the fabric has at least one coating or impregnation |
| | 66 | At least two coatings or impregnations of different chemical composition |
| | 67 |  Different coatings or impregnations on opposite faces of the fabric |
| | 68 | At least one coating or impregnation contains particulate material |
| | 70 | At least one coating or impregnation contains particulate material |
| | 71 | At least two coatings or impregnations of different chemical composition |
| | 74 | At least one coating or impregnation contains particulate material |
| | 76 | Coating or impregnation specified as porous or permeable to a specific substance (e.g., water vapor, air, etc.) |
| | 78 | Coating or impregnation collects radionuclide or heavy metal |
| | 79 | Coating or impregnation specified as water repellent |
| | 80 | Also specified as oil repellent |
| | 81 | Organosilicon containing |
| | 82 | Fluorocarbon containing |
| | 83 | Nitrogen containing |
| | 84 | Natural oil or wax containing |
| | 85 | Coating or impregnation is specified as weather proof, water vapor resistant, or moisture resistant |
| | 86 | Coating or impregnation is specified as water proof |
| | 87 | Organosilicon containing |
| | 88 | Fluorocarbon containing |
| | 89 | Nitrogen containing |
| | 90 | Natural oil or wax containing |
| | 91 | Coating or impregnation is oil repellent but not oil or stain release |
| | 93 | Coating or impregnation improves soil repellency, soil release, or anti- soil redeposition qualities of fabric |
| | 96 | Coating or impregnation provides a fragrance or releases an odor intended to be perceptible to humans |
| | 97 | Coating or impregnation is a lubricant or a surface friction reducing agent other than specified as improving the "hand" of the fabric or increasing the softness thereof |
| | 101 | Coating or impregnation is anti-slip or friction-increasing other than specified as an abrasive |
| | 102 | Coating or impregnation functions to soften the feel of or improve the "hand" of the fabric |
| | 103 | Coating or impregnation improves stiffness of the fabric other than specified as a size |
| | 104 | Coating or impregnation improves elasticity, bendability, resiliency, flexibility, or shape retention of the fabric |
| | 105 | Improves elasticity |
| | 106 | Improves shrink resistance |
| | 107 | Coating or impregnation provides crease-resistance or wash and wear characteristics |
| | 108 | Coating or impregnation specified as a size |
| | 109 | Coating or impregnation improves snag or pull resistance of the fabric |
| | 110 | Coating or impregnation increases electrical conductivity or anti-static quality |
| | 111 | Elemental carbon containing |
| | 112 | Linear polyether group chain containing |
| | 113 | Nitrogen and phosphorus containing |
| | 114 | Phosphorus containing |
| | 115 | Nitrogen containing |
| | 116 | Sulphur containing |
| | 117 | Coating or impregnation is electrical insulation-providing, -improving, or -increasing, or conductivity-reducing |
| | 118 | Coating or impregnation is water absorbency-increasing or hydrophilicity-increasing or hydrophilicity-imparting |
| | 120 | Coating or impregnation absorbs sound |
| | 121 | Coating or impregnation absorbs chemical material other than water |
| | 123 | Coating or impregnation functions biologically (e.g., insect repellent, antiseptic, insecticide, bactericide, etc.) |
| | 126 | Coating or impregnation is chemically inert or of stated nonreactance |
| | 127 | Oxygen or ozone resistant |
| | 128 | Organic solvent resistant (e.g., dry cleaning fluid, etc.) |
| | 129 | Acid or alkali resistant |
| | 130 | Coating or impregnation contains an optical bleach or brightener or functions as an optical bleach or brightener (e.g., it masks fabric yellowing, etc.) |
| | 131 | Coating or impregnation provides protection from radiation (e.g., U.V., visible light, I.R., microwave, high energy particle, etc.) or heat retention thru radiation absorption |
| | 134 | Coating or impregnation is resistant to penetration by solid implements |
| | 136 | Coating or impregnation provides heat or fire protection |
| | 137 | Coated or impregnated asbestos fabric |
| | 138 | Coating or impregnation is specified as an intumescent material |
| | 139 | Antimony containing |
| | 140 | Boron containing |
| | 141 | Phosphorus containing |
| | 142 | Phosphorus and nitrogen containing compound |
| | 143 | A phosphorus containing compound and a nitrogen containing compound |
| | 144 | Phosphorus and halogen containing compound |
| | 145 | A phosphorus containing compound and a halogen containing compound |
| | 146 | Halogen containing |
| | 147 | Nitrogen containing |
| | 148 | Coating or impregnation provides wear or abrasion resistance |
| | 149 | Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith |
| | 152 | Coated or impregnated natural fiber fabric (e.g., cotton, wool, silk, linen, etc.) |
| | 153 | Coated or impregnated cellulosic fiber fabric |
| | 154 | Coating or impregnation contains an acrylic polymer or copolymer (e.g., polyacrylonitrile, polyacrylic acid, etc.) |
| | 155 | Coating or impregnation contains a vinyl polymer or copolymer |
| | 156 | Coating or impregnation contains an epoxy polymer or copolymer or polyether |
| | 157 | Polymeric coating or impregnation from a silane or siloxane not specified as lubricant or water repellent |
| | 158 | Coating or impregnation contains polyimide or polyamide |
| | 159 | Coating or impregnation contains natural gum, rosin, natural oil, or wax |
| | 160 | Coating or impregnation contains aldehyde or ketone condensation product |
| | 164 | Coated or impregnated synthetic organic fiber fabric |
| | 165 | Coated or impregnated regenerated cellulose fiber fabric |
| | 166 | Coated or impregnated polyvinyl alcohol fiber fabric |
| | 167 | Coated or impregnated acrylic fiber fabric |
| | 168 | Coated or impregnated polyamide fiber fabric |
| | 170 | Coated or impregnated polyolefin fiber fabric |
| | 172 | Coated or impregnated inorganic fiber fabric |
| | 173 | Coating or impregnation contains vinyl polymer or copolymer |
| | 175 | Coating or impregnation contains epoxy polymer or copolymer or polyether |
| | 176 | Coating or impregnation contains aldehyde or ketone condensation product |
| | 178 | Coated or impregnated ceramic fiber fabric |
| | 179 | Coated or impregnated carbon or carbonaceous fiber fabric |
| | 180 | Coated or impregnated glass fiber fabric |
| | 181 | WOVEN FABRIC (I.E., WOVEN STRAND OR STRIP MATERIAL) |
| | 182 | Woven fabric has an elastic quality |
| | 183 | Including a preformed layer other than the elastic woven fabric (e.g., fabric or film or foil or sheet layer, etc.) |
| | 184 | Including elastic strand or strip |
| | 185 | Including a strip or ribbon |
| | 187 | Including strand precoated with other than free metal or alloy |
| | 189 | Including strand which is of specific structural definition |
| | 190 | Strand material is core-spun (not sheath-core bicomponent strand) |
| | 192 | Cross-sectional configuration of strand material is specified |
| | 193 | Cross-sectional configuration varies longitudinaly along the strand |
| | 194 | Hollow strand material |
| | 195 | Cross-sectional configuration of the strand material is other than circular |
| | 197 | Strand material formed of individual filaments having different chemical compositions |
| | 200 | Sheath-core multicomponent strand material |
| | 201 | Islands-in-sea multicomponent strand material |
| | 202 | Strand material is a blend of polymeric material and a filler material |
| | 203 | Woven fabric is characterized by a particular or differential weave other than fabric in which the strand denier or warp/weft pick count is specified |
| | 204 | Triaxially woven fabric |
| | 205 | Three-dimensional weave (e.g., x-y-z planes, multi-planar warps and/or wefts, etc.) |
| | 208 | Warp differs from weft |
| | 209 | Materials differ |
| | 217 | Warp and weft are identical and contain at least two chemically different strand materials |
| | 218 | Coated, impregnated, or autogenous bonded |
| | 221 | Including a foamed layer or component |
| | 222 | Including a free metal or alloy constituent |
| | 223 | Plural foam layers |
| | 224 | Plural fabric layers |
| | 226 | Woven fabric is coated, impregnated, or autogenously bonded |
| | 228 | Including a free metal or alloy constituent |
| | 229 | Metal or metal-coated strand |
| | 230 | Vapor or sputter deposited metal layer |
| | 231 | Chemically deposited metal layer (e.g., chemical precipitation or electrochemical deposition or plating, etc.) |
| | 232 | Preformed metallic film or foil or sheet (film or foil or sheet had structural integrity prior to association with the woven fabric) |
| | 233 | Plural metallic films or foils or sheets |
| | 234 | Plural fabric layers |
| | 236 | Including a preformed synthetic polymeric film or sheet (i.e., film or sheet having structural integrity prior to association with the woven fabric) |
| | 237 | Including particulate material other than fiber |
| | 238 | Plural fabric layers |
| | 239 | Woven fabric including an additional woven fabric layer |
| | 240 | Mechanically needled or hydroentangled |
| | 243 | Woven fabric layers comprise chemically different strand material |
| | 246 | Three or more fabric layers |
| | 247 | One of which is a nonwoven fabric layer |
| | 248 | Woven fabric layers impregnated with a blend of thermosetting and thermoplastic resins |
| | 249 | Woven fabric layers impregnated with an organosilicon resin |
| | 250 | Woven fabric layers impregnated with a natural or synthetic rubber |
| | 251 | Woven fabric layers impregnated with a thermosetting resin |
| | 254 | Woven fabric layers impregnated with a thermoplastic resin (e.g., vinyl polymer, etc.) |
| | 255 | Three or more distinct layers |
| | 256 | At least one layer is derived from water-settable material (e.g., cement, gypsum, etc.) |
| | 257 | At least one layer contains wood or cork |
| | 258 | At least one layer contains bituminous material (e.g., tar, pitch, asphalt, etc.) |
| | 259 | At least one layer comprises paper |
| | 260 | At least one layer contains natural or synthetic rubber |
| | 261 | At least one layer is a preformed synthetic polymeric film or sheet |
| | 262 | At least one layer comprises ceramic or glass material in other than particulate form |
| | 264 | Fabric layer contains natural strand material |
| | 265 | Fabric layer contains carbon or carbonaceous strand material |
| | 266 | Fabric layer contains glass strand material |
| | 267 | Including particulate material other than fiber |
| | 268 | Woven fabric including a nonwoven fabric layer other than paper |
| | 269 | Nonwoven fabric layer comprises parallel arrays of strand material |
| | 270 | Needled |
| | 271 | Including an additional nonwoven fabric |
| | 272 | Additional nonwoven fabric comprises chemically different strand material than the first nonwoven fabric |
| | 273 | Including inorganic strand material |
| | 274 | Nonwoven fabric layer comprises at least two chemically different fibers |
| | 275 | Coated, impregnated, or autogenously bonded |
| | 276 | Hydroentangled |
| | 277 | Coated, impregnated, or autogenously bonded |
| | 278 | Plural nonwoven fabric layers |
| | 279 | Coating or impregnation is derived from a water-settable material (e.g., cement, gypsum, etc.) |
| | 280 | Coating or impregnation contains natural or synthetic rubber |
| | 281 | Coating or impregnation contains synthetic polymeric material |
| | 282 | Coating or impregnation contains bituminous material |
| | 283 | Four or more layers |
| | 285 | Including particulate material other than fiber |
| | 286 | Woven fabric with a preformed polymeric film or sheet |
| | 287 | Ester condensation polymer sheet or film (e.g., polyethylene terephthalate, etc.) |
| | 288 | Vinyl polymer or copolymer sheet or film (e.g., polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, etc.) |
| | 289 | Fluorinated olefin polymer or copolymer sheet or film (e.g., TEFLON™, etc.) |
| | 290 | Olefin polymer or copolymer sheet or film (e.g., polypropylene, polyethylene, ethylene-butylene copolymer, etc.) |
| | 291 | Amide condensation polymer sheet or film (e.g., nylon 6, etc.) |
| | 292 | Polyimide sheet or film |
| | 293 | Natural or synthetic rubber sheet or film |
| | 294 | Including particulate material other than fiber |
| | 295 | Including a paper or wood pulp layer |
| | 296 | Mica paper layer |
| | 297 | Plural paper or wood pulp layers |
| | 298 | Including a bituminous layer |
| | 299 | Including an outermost adhesive layer |
| | 300 | Including a natural or synthetic rubber layer |
| | 304 | KNIT FABRIC (I.E., KNIT STRAND OR STRIP MATERIAL) |
| | 305 | Including parallel strips |
| | 306 | Including an elastic strand |
| | 307 | Including strand precoated with other than free metal or alloy |
| | 308 | Including strand which is of specific structural definition |
| | 309 | Cross-sectional configuration of strand material is specified |
| | 310 | Strand material formed of individual filaments having different chemical compositions |
| | 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 |
| | 315 | Including a foamed layer or component |
| | 316 | Including a free metal or alloy constituent |
| | 317 | Chemically deposited metal layer (e.g., chemical precipitation or electrochemical deposition or plating, etc.) |
| | 318 | Including an additional knit fabric layer |
| | 319 | Including a nonwoven fabric layer other than paper |
| | 320 | FELT FABRIC |
| | 321 | From natural organic fiber (e.g., wool, etc.) |
| | 324 | From synthetic organic fiber |
| | 325 | Including particulate material other than fiber |
| | 326 | At least three layers |
| | 327 | NONWOVEN FABRIC (I.E., NONWOVEN STRAND OR FIBER MATERIAL) |
| | 328 | Nonwoven fabric has an elastic quality |
| | 330 | Including strand or fiber material precoated with other than free metal or alloy |
| | 331 | Strand or fiber material is glass |
| | 332 | Strand or fiber material is inorganic |
| | 333 | Strand or fiber material is synthetic polymer |
| | 334 | Including strand or fiber material which is of specific structural definition |
| | 335 | Cross-sectional configuration of strand or fiber material is specified |
| | 336 | Cross-sectional configuration varies longitudinally along strand or fiber material |
| | 337 | Cross-sectional configuration of strand or fiber material is other than circular |
| | 338 | Hollow strand or fiber material |
| | 339 | Microcellular strand or fiber material |
| | 340 | Strand or fiber material specified as having micro dimensions (i.e., microfiber) |
| | 341 | Strand or fiber material is blended with another chemically different microfiber in the same layer |
| | 342 | Blend of synthetic polymeric and inorganic microfibers |
| | 343 | Blend of chemically different inorganic microfibers |
| | 344 | Including other strand or fiber material in the same layer not specified as having micro dimensions |
| | 345 | Including another chemically different microfiber in a separate layer |
| | 346 | Including other strand or fiber material in a different layer not specified as having micro dimensions |
| | 347 | Microfiber is a composite fiber |
| | 348 | Microfiber is glass |
| | 349 | Microfiber is carbon or carbonaceous |
| | 350 | Autogenously bonded |
| | 351 | Microfiber is synthetic polymer |
| | 352 | Strand or fiber material is specified as non-linear (e.g., crimped, coiled, etc.) |
| | 353 | Composite strand or fiber material |
| | 354 | Carbon or carbonaceous strand or fiber material |
| | 355 | Glass strand or fiber material |
| | 356 | A single nonwoven layer comprising non-linear synthetic polymeric strand or fiber material and strand or fiber material not specified as non-linear |
| | 359 | Synthetic polymeric strand or fiber material |
| | 362 | Side-by-side multicomponent strand or fiber material |
| | 363 | Islands-in-sea multicomponent strand or fiber material |
| | 364 | Sheath-core multicomponent strand or fiber material |
| | 365 | Strand or fiber material is a blend of polymeric material and a filler material |
| | 366 | Including parallel strand or fiber material within the nonwoven fabric |
| | 367 | Parallel strand or fiber material is glass |
| | 368 | Parallel strand or fiber material is inorganic (e.g., rock wool, mineral wool, etc.) |
| | 369 | Parallel strand or fiber material is naturally occurring (e.g., cotton, wool, etc.) |
| | 370 | Including a foamed layer or component |
| | 371 | Including a free metal or alloy constituent |
| | 372 | Plural foamed layers |
| | 373 | Plural fabric layers |
| | 374 | Nonwoven fabric is coated, impregnated, or autogenously bonded |
| | 376 | Including a free metal or alloy constituent |
| | 377 | Metal or metal-coated strand or fiber material |
| | 378 | Preformed metallic film or foil or sheet (film or foil or sheet had structural integrity prior to association with the nonwoven fabric) |
| | 379 | Vapor, chemical, or spray deposited metal layer |
| | 380 | Particulate free metal or alloy constituent |
| | 381 | Including an additional nonwoven fabric |
| | 382 | Additional nonwoven fabric is a spun-bonded fabric |
| | 385 | Including a wood fiber containing layer |
| | 386 | Including a layer derived from a water-settable material (e.g., cement, gypsum, etc.) |
| | 387 | Mechanically interengaged by needling or impingement of fluid (e.g., gas or liquid stream, etc.) |
| | 389 | Separate nonwoven fabric layers comprise chemically different strand or fiber material |
| | 390 | At least one layer of inorganic strand or fiber material and at least one layer of synthetic polymeric strand or fiber material |
| | 391 | Multiple nonwoven fabric layers composed of the same inorganic strand or fiber material |
| | 392 | Multiple nonwoven fabric layers composed of the same polymeric strand or fiber material |
| | 393 | Including particulate material other than fiber |
| | 394 | Nonwoven fabric with a preformed polymeric film or sheet |
| | 395 | Ester condensation polymer sheet or film (e.g., polyethylene terephthalate, etc.) |
| | 396 | Vinyl polymer or copolymer sheet or film (e.g., polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, etc.) |
| | 397 | Fluorinated olefin polymer or copolymer sheet or film (e.g., TeflonR, etc.) |
| | 398 | Olefin polymer or copolymer sheet or film (e.g., polypropylene, polyethylene, ethylene-butylene copolymer, etc.) |
| | 399 | Natural or synthetic rubber sheet or film |
| | 400 | Melt-blown nonwoven fabric |
| | 401 | Spun-bonded nonwoven fabric |
| | 402 | Needled nonwoven fabric |
| | 408 | Hydroentangled nonwoven fabric |
| | 409 | Autogenously bonded nonwoven fabric |
| | 410 | Inorganic strand or fiber material only |
| | 411 | Containing at least two chemically different strand or fiber materials |
| | 412 | Including a paper layer |
| | 413 | Including a wood containing layer |
| | 415 | Containing at least two chemically different strand or fiber materials |
| | 417 | Including particulate material other than strand or fiber material |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived. | ||
| WEB OR SHEET CONTAINING STRUCTURALLY DEFINED ELEMENT OR COMPONENT (428/221) |
| FOR100 | Textile, cloth or fabric (woven, knitted, etc., or nonwoven, but not paper) (428/224) |
| FOR101 | Embodying mechanically interengaged strands, strand-portions or strand-like strips (e.g., weave, knit, etc.) (428/225) |
| FOR102 | Including strand-like strips (428/226) |
| FOR103 | Intertangled strands or strand-portions (428/227) |
| FOR105 | Including structurally modified or defined strand (428/229) |
| FOR106 | Elastic (428/230) |
| FOR108 | With parallel strips or strands not interengaged with other strands (428/232) |
| FOR109 | With paper or other fiber-containing layer or component (428/233) |
| FOR116 | With particulate material (428/240) |
| FOR117 | Silicon containing particles (e.g., glass, talc, quartz, ceramic, etc.) (428/241) |
| FOR118 | Metal or metal compound particles (428/242) |
| FOR119 | Cellulosic particles (e.g., cork, etc.) (428/243) |
| FOR120 | Free carbon particles (e.g., graphite, etc.) (428/244) |
| FOR121 | With coating, impregnation or bond (428/245) |
| FOR122 | Three or more layers (428/246) |
| FOR123 |  Including netted or open mesh strand, filament or strip (428/247) |
| FOR124 | Cellulosic layer (428/248) |
| FOR126 | Natural rubber layer (428/250) |
| FOR127 | Interengaged strand component includes silicic or free metal material (e.g., asbestos, glass, etc.) (428/251) |
| FOR128 | Interengaged strand component includes synthetic fiber or filament (428/252) |
| FOR129 | Knitted strand, filament, portion or strip (428/253) |
| FOR131 | Netted or open mesh strand, filament, portion or strip (428/255) |
| FOR133 | Particular or differential weave (428/257) |
| FOR136 | Coated or impregnated base (428/260) |
| FOR137 | Adhesive coating or impregnation (428/261) |
| FOR138 | Coating on surface of base (428/262) |
| FOR139 |  Metal or compound thereof or natural rubber in coating (428/263) |
| FOR140 | Base is cellulosic material (428/264) |
| FOR141 | Base comprises synthetic strands, fibers or filaments (428/265) |
| FOR142 |  Silicone, silane or siloxane in coating (428/266) |
| FOR143 | Polyamide or polyimide (e.g., nylon, etc.) strands (428/267) |
| FOR144 | Glass fibers, filaments or strands (428/268) |
| FOR145 | Keyed by penetration of interstices (428/269) |
| FOR146 | Wool substrate impregnated (428/270) |
| FOR147 | Asbestos fiber base impregnated (428/271) |
| FOR148 | Synthetic filament base impregnated (428/272) |
| FOR150 | Cellulosic monolayer impregnated (428/274) |
| FOR151 | Impregnation contains metallic compound or free element (428/275) |
| FOR152 | Phosphorous containing impregnant (428/276) |
| FOR154 | Aldehyde or ketone condensation product (428/278) |
| FOR155 | Quaternary ammonium compound in impregnant (428/279) |
| FOR156 | Felt fabric (428/280) |
| FOR159 | With particulate matter (428/283) |
| FOR160 | Fabric with plural layers (428/284) |
| FOR161 | At least one metal or glass (428/285) |
| FOR162 | At least one synthetic resin or polymer (428/286) |
| FOR164 | Bonded or coated fibers (428/288) |
| FOR165 | Fabric has impregnation and/or single coating (428/289) |