US PATENT SUBCLASS 562 / 453
.~.~.~.~.~ Carboxyl, or salt thereof, nitrogen and oxygen all bonded directly to the same benzene ring

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}
405  DF  .~.~ Aromatic {13}
433  DF  .~.~.~ Nitrogen bonded directly to carbon of organic radical (e.g., amino acids, etc.) {9}
452  DF  .~.~.~.~ Oxy {3}
453.~.~.~.~.~ Carboxyl, or salt thereof, nitrogen and oxygen all bonded directly to the same benzene ring

DEFINITION

Classification: 562/453

Carboxyl, or salt thereof, nitrogen and oxygen all bonded directly to the same benzene ring:

(under subclass 452) Compounds wherein the acid contains nitrogen, an oxy group, and a carboxyl group, all attached directly to the same benzene ring.

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