US PATENT SUBCLASS 442 / 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.)

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}
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.)

DEFINITION

Classification: 442/130

Coating or impregnation contains an optical bleach or brightener or functions as an optical bleach or brightener (e.g., it masks fabric yellowing, etc.):

(under subclass 59) Subject matter wherein the coating or impregnation is specifically stated to contain an optical bleach or brightener, act as an optical bleach or brightener, or mask fabric yellowing.