US PATENT SUBCLASS 568 / 630
.~.~.~.~ 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}
626  DF  .~.~.~ Benzene ring containing {7}
630.~.~.~.~ Ether oxygen bonded directly to benzene ring {5}
631  DF  .~.~.~.~.~> Plural rings containing {6}
648  DF  .~.~.~.~.~> Polyoxy {3}
655  DF  .~.~.~.~.~> Halogen containing {1}
657  DF  .~.~.~.~.~> Aryl-oxy-alkenyl or aryl-oxy-alkynyl
658  DF  .~.~.~.~.~> Acyclic hydrocarbyl group bonded directly to the benzene ring

DEFINITION

Classification: 568/630

Ether oxygen bonded directly to a benzene ring:

(under subclass 626) Compounds wherein an ether oxygen is bonded directly to a carbon of at least one benzene ring.