US PATENT SUBCLASS 442 / 126
.~ Coating or impregnation is chemically inert or of stated nonreactance

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

59  DF  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 {36}
126.~ Coating or impregnation is chemically inert or of stated nonreactance {3}
127  DF  .~.~> Oxygen or ozone resistant
128  DF  .~.~> Organic solvent resistant (e.g., dry cleaning fluid, etc.)
129  DF  .~.~> Acid or alkali resistant

DEFINITION

Classification: 442/126

Coating or impregnation is chemically inert or of stated nonreactance:

(under subclass 59) Subject matter wherein the coating or impregnation is specifically stated to be chemically inert or nonreactant.