US PATENT SUBCLASS 508 / 581
.~.~.~.~ Two rings bonded directly to the ether oxygen

Current as of: June, 1999
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508 /   HD   SOLID ANTI-FRICTION DEVICES, MATERIALS THEREFOR, LUBRICANT OR SEPARATE COMPOSITIONS FOR MOVING SOLID SURFACES, AND MISCELLANEOUS MINERAL OIL COMPOSITIONS

110  DF  LUBRICANTS OR SEPARANTS FOR MOVING SOLID SURFACES AND MISCELLANEOUS MINERAL OIL COMPOSITIONS (E.G., WATER CONTAINING, ETC.) {53}
577  DF  .~ Organic oxygen compound {3}
579  DF  .~.~ Ethers {2}
580  DF  .~.~.~ Ring bonded directly to the ether oxygen {1}
581.~.~.~.~ Two rings bonded directly to the ether oxygen

DEFINITION

Classification: 508/581

Two rings bonded directly to the ether oxygen:

(under subclass 580) Compositions wherein the ether oxygen is bonded directly to two rings.

(1) Note. An example of a component provided for herein is

[figure]