US PATENT SUBCLASS 562 / 427
.~.~.~.~ Polycyclo ring system


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}
405  DF  .~.~ Aromatic {13}
426  DF  .~.~.~ Sulfur {4}
427.~.~.~.~ Polycyclo ring system {1}
428  DF  .~.~.~.~.~> Indenyl or hydrindenyl


DEFINITION

Classification: 562/427

Polycyclo ring system:

(under subclass 426) Compounds wherein the acid contains at least two carbocyclic groups which are joined through two orthopositioned carbon atoms or through a bridge.

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