US PATENT SUBCLASS 568 / 665
.~.~.~.~ 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



568 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
579  DF  .~.~ Ethers {11}
664  DF  .~.~.~ Plural alicyclic rings containing {1}
665.~.~.~.~ Polycyclo ring system


DEFINITION

Classification: 568/665

Polycyclo ring system:

(under subclass 664) Compounds which contain a polycyclo ring system.