US PATENT SUBCLASS 560 / 141
.~.~.~.~.~ Rings bonded directly to each other 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  DF  .~.~.~.~ Plural rings in phenolic moiety {3}
141.~.~.~.~.~ Rings bonded directly to each other in phenolic moiety

DEFINITION

Classification: 560/141

Rings bonded directly to each other in phenolic moiety:

(under subclass 138) Compounds wherein the phenolic moiety contains two carbocyclic groups joined to each other through a covalent bond.

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

[figure]