US PATENT SUBCLASS 442 / 142
.~.~.~ Phosphorus and nitrogen containing compound


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}
136  DF  .~ Coating or impregnation provides heat or fire protection {7}
141  DF  .~.~ Phosphorus containing {4}
142.~.~.~ Phosphorus and nitrogen containing compound


DEFINITION

Classification: 442/142

Phosphorus and nitrogen containing compound:

(under subclass 141) Subject matter wherein the coating or impregnation contains a compound which comprises phosphorus and nitrogen.