US PATENT SUBCLASS 562 / 498
.~.~ Plural alicyclic rings

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
498.~.~ Plural alicyclic rings {2}
499  DF  .~.~.~> Tricyclo ring system
500  DF  .~.~.~> Two rings only {2}

DEFINITION

Classification: 562/498

Plural alicyclic rings:

(under subclass 400) Compounds wherein the acid contains more than one alicyclic nucleus.

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

SEE OR SEARCH CLASS

552, Organic Compounds,

653, for acids of Vitamin D and 3-5 cyclovitamin D compounds, etc.