US PATENT SUBCLASS 442 / 61
.~ Impregnation is confined to a plane disposed between both major fabric surfaces which are essentially free of impregnating material

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}
61.~ Impregnation is confined to a plane disposed between both major fabric surfaces which are essentially free of impregnating material

DEFINITION

Classification: 442/61

Impregnation is confined to a plane disposed between both major fabric surfaces which are essentially free of impregnating material:

(under subclass 59) Subject matter wherein the fabric is impregnated in such a way as to restrict the impregnant to a location between both major fabric surfaces, both major fabric surfaces being essentially free of impregnant.