US PATENT SUBCLASS 562 / 504
.~.~.~ Cyclopentyl bonded to -COOR, -CCOOR, or -CCCOOR

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}
503  DF  .~.~ Cyclopentyl (e.g., prostoglandins, etc.) {1}
504.~.~.~ Cyclopentyl bonded to -COOR, -CCOOR, or -CCCOOR

DEFINITION

Classification: 562/504

Cyclopentyl-(C)x - COOH; x=0-2:

(under subclass 503) Compounds wherein the acid contains a carboxyl group which is directly bonded to a cyclopentyl nucleus or is attached thereto through a chain of no more than two carbons.

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