US PATENT SUBCLASS 568 / 584
.~.~.~.~ Ether oxygen bonded directly to benzene ring

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}
583  DF  .~.~.~ Nitrogen containing {2}
584.~.~.~.~ Ether oxygen bonded directly to benzene ring {3}
585  DF  .~.~.~.~.~> Plural rings containing {1}
587  DF  .~.~.~.~.~> Polyoxy
588  DF  .~.~.~.~.~> Halogen containing

DEFINITION

Classification: 568/584

Aromatic having ether oxygen bonded directly to a benzene ring:

(under subclass 583) Compounds which contain at least one benzene ring having an ether oxygen bonded directly thereto.