US PATENT SUBCLASS 568 / 679
.~.~.~.~.~.~ Polyether


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}
671  DF  .~.~.~ Acyclic {7}
672  DF  .~.~.~.~ Polyoxy {3}
678  DF  .~.~.~.~.~ Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) {2}
679.~.~.~.~.~.~ Polyether


DEFINITION

Classification: 568/679

Polyether:

(under subclass 678) Compounds which contain two or more ether groups.