US PATENT SUBCLASS 442 / 298
.~.~ Including a bituminous layer


Current as of: June, 1999
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442 /   HD   FABRIC (WOVEN, KNITTED, OR NONWOVEN TEXTILE OR CLOTH, ETC.)

181  DF  WOVEN FABRIC (I.E., WOVEN STRAND OR STRIP MATERIAL) {13}
295  DF  .~ Including a paper or wood pulp layer {5}
298.~.~ Including a bituminous layer


DEFINITION

Classification: 442/298

Including a bituminous layer:

(under subclass 295) Subject matter wherein at least one layer is disclosed as being coated or impregnated with a pitch, asphalt, tar, bitumen, or the residue from the distillation of mineral oil and/or coal.