US PATENT SUBCLASS 568 / 664
.~.~.~ Plural alicyclic rings containing


Current as of: June, 1999
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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.~.~.~ Plural alicyclic rings containing {1}
665  DF  .~.~.~.~> Polycyclo ring system


DEFINITION

Classification: 568/664

Plural alicyclic rings containing:

(under subclass 579) Compounds which contain at least two alicyclic rings.