US PATENT SUBCLASS 514 / 573
.~.~.~.~ Cyclopentyl or cyclopentene (e.g., prostaglandins, etc.)

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
553  DF  .~ Radical -XH acid, or anhydride, acid halide or salt thereof (X is chalcogen) DOAI {6}
557  DF  .~.~ Carboxylic acid, percarboxylic acid, or salt thereof (e.g., peracetic acid, etc.) {5}
572  DF  .~.~.~ Cyclic carboxylic acid containing three to five carbons or cyclic percarboxylic acid containing three to five carbons or salt thereof {1}
573.~.~.~.~ Cyclopentyl or cyclopentene (e.g., prostaglandins, etc.)

DEFINITION

Classification: 514/573

Cyclopentyl or cyclopentene (e.g., prostaglandins, etc.):

(under subclass 572) Subject matter wherein the ring is cyclopentyl or cyclopentene.

(1) Note. This subclass contains certain prostaglandins, etc.