US PATENT SUBCLASS 514 / 574
.~.~.~ Polycarboxylic acid or salt thereof

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
553  DF  .~ Radical -XH acid, or anhydride, acid halide or salt thereof (X is chalcogen) DOAI {6}
557  DF  .~.~ Carboxylic acid, percarboxylic acid, or salt thereof (e.g., peracetic acid, etc.) {5}
574.~.~.~ Polycarboxylic acid or salt thereof

DEFINITION

Classification: 514/574

Polycarboxylic acid or salt thereof:

(under subclass 557) Subject matter wherein the active ingredient contains at least two C(=O)-O groups bonded to the same or different carbons.