US PATENT SUBCLASS 508 / 203
.~.~ The silicon is in a ring

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}
202  DF  .~ Organic compound containing silicon (e.g., silicon esters) {5}
203.~.~ The silicon is in a ring

DEFINITION

Classification: 508/203

The silicon is in a ring:

(under subclass 202) Compositions wherein a ring has silicon as one of its members.

(1) Note. Examples of components provided for herein are cyclosiloxanes and [figure]