US PATENT SUBCLASS 556 / 489
.~.~.~ Unsaturated carbocyclic ring containing

Current as of: June, 1999
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556 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {3}
400  DF  .~ SILICON CONTAINING {19}
465  DF  .~.~ Carbon attached directly or indirectly to the silicon by nonionic bonding (e.g., silanes, etc.) {5}
489.~.~.~ Unsaturated carbocyclic ring containing

DEFINITION

Classification: 556/489

(under subclass 465) Compounds which contain an unsaturated carbocyclic ring.

(1) Note. An example of a compound provided for herein is: [figure]