US PATENT SUBCLASS 568 / 668
.~.~.~.~ 2,6,6-trialkylcyclohexenyl (e.g., vitamin A derivatives, etc.)

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}
667  DF  .~.~.~ Unsaturated alicyclic ring containing {1}
668.~.~.~.~ 2,6,6-trialkylcyclohexenyl (e.g., vitamin A derivatives, etc.)

DEFINITION

Classification: 568/668

2,6,6-trialkylcyclohexenyl (e.g., vitamin a derivatives, etc.):

(under subclass 667) Compounds which contain a 2,6,6-trialkylcyclohexenyl nucleus.