US PATENT SUBCLASS 442 / 287
.~.~ Ester condensation polymer sheet or film (e.g., polyethylene terephthalate, etc.)

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}
286  DF  .~ Woven fabric with a preformed polymeric film or sheet {8}
287.~.~ Ester condensation polymer sheet or film (e.g., polyethylene terephthalate, etc.)

DEFINITION

Classification: 442/287

Ester condensation polymer sheet or film (e.g., polyethylene terephthalate, etc.):

(under subclass 286) Subject matter wherein the preformed polymeric film or sheet is an ester condensation product such as polyethylene terephthalate, etc.