US PATENT SUBCLASS 560 / 132
.~.~.~.~ Carbamic acid

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {17}
1  DF  .~ Carboxylic acid esters {14}
129  DF  .~.~ Acyclic acid moiety {9}
130  DF  .~.~.~ Esterified phenolic hydroxy {8}
132.~.~.~.~ Carbamic acid {4}
133  DF  .~.~.~.~.~> Plural rings in phenolic moiety {1}
135  DF  .~.~.~.~.~> Sulfur in phenolic moiety
136  DF  .~.~.~.~.~> Nitrogen in phenolic moiety
137  DF  .~.~.~.~.~> Sulfur, halogen or additional nitrogen or oxygen in carbamic acid moiety

DEFINITION

Classification: 560/132

Carbamic acid:

(under subclass 130) Compounds wherein the acid radical contains nitrogen directly attached to the carbon of an esterified carboxyl group.

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