US PATENT SUBCLASS 562 / 568
.~.~.~.~.~ Polycarboxylic

Current as of: June, 1999
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562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
400  DF  .~ Carboxylic acids and salts thereof {14}
512  DF  .~.~ Acyclic {14}
553  DF  .~.~.~ Nitrogen bonded to carbon of organic radical (e.g., amino acids, etc.) {10}
567  DF  .~.~.~.~ Oxy, aldehyde, or ketone {3}
568.~.~.~.~.~ Polycarboxylic

DEFINITION

Classification: 562/568

Polycarboxylic:

(under subclass 567) Compounds wherein the acid contains more than one carboxyl group.

(1) Note. This subclass contains, for example: [figure] [figure]