US PATENT SUBCLASS 442 / 283
.~.~.~ Four or more layers

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}
268  DF  .~ Woven fabric including a nonwoven fabric layer other than paper {4}
277  DF  .~.~ Coated, impregnated, or autogenously bonded {7}
283.~.~.~ Four or more layers {1}
284  DF  .~.~.~.~> Including particulate material other than fiber

DEFINITION

Classification: 442/283

Four or more layers:

(under subclass 277) Subject matter wherein at least four distinct layers are associated together including a woven fabric layer and at least one nonwoven fabric layer, the coating or impregnation may constitute at least one layer.