US PATENT SUBCLASS 568 / 608
.~.~.~.~.~ Ether oxygen bonded directly to a 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}
606  DF  .~.~.~ Plural oxyalkylene groups bonded directly to each other {3}
607  DF  .~.~.~.~ Benzene ring containing {2}
608.~.~.~.~.~ Ether oxygen bonded directly to a benzene ring {2}
609  DF  .~.~.~.~.~.~> Plural rings containing
610  DF  .~.~.~.~.~.~> Halogen containing

DEFINITION

Classification: 568/608

Ether oxygen bonded directly to a benzene ring:

(under subclass 607) Compounds wherein an ether oxygen is bonded directly to a carbon of at least one benzene ring.