US PATENT SUBCLASS 568 / 304
.~.~.~ With preservative or stabilizer

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}
303  DF  .~.~ Ketones {10}
304.~.~.~ With preservative or stabilizer

DEFINITION

Classification: 568/304

(under subclass 303) Products wherein the ketone is mixed with a preserving or stabilizing agent which functions to prevent physical or chemical change.