US PATENT SUBCLASS 436 / 129
.~.~ Carboxylic acid

Current as of: June, 1999
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436 /   HD   CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING

127  DF  OXYGEN CONTAINING {5}
128  DF  .~ Carbonyl, ether, aldehyde or ketone containing {2}
129.~.~ Carboxylic acid

DEFINITION

Classification: 436/129

Carboxylic acid:

(under subclass 128) Subject matter in which the specie to be investigated contains a carboxylic acid functional group.

(1) Note. Acetic acid and salicyclic acid are classifiable herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

89, and 90, for chemical tests for amino acids.