US PATENT SUBCLASS 560 / 138
.~.~.~.~ Plural rings in phenolic moiety

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}
138.~.~.~.~ Plural rings in phenolic moiety {3}
139  DF  .~.~.~.~.~> Ortho fused
140  DF  .~.~.~.~.~> Plural rings bonded directly to the same carbon in phenolic moiety
141  DF  .~.~.~.~.~> Rings bonded directly to each other in phenolic moiety

DEFINITION

Classification: 560/138

Plural rings in phenolic moiety:

(under subclass 130) Compounds wherein the phenolic moiety contains more than one carbocyclic group.

(1) Note. See subclasses 133+ for polycyclic phenolic esters of carbamic acids.

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