US PATENT SUBCLASS 508 / 552
.~.~.~ Additional nitrogen bonded directly to the -C(=X)- group (e.g., ueas, etc.)

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}
545  DF  .~ Organic nitrogen compound {8}
551  DF  .~.~ Having -C(=X)- bonded directly to the nitrogen, wherein X is oxygen or sulfur {4}
552.~.~.~ Additional nitrogen bonded directly to the -C(=X)- group (e.g., ueas, etc.)

DEFINITION

Classification: 508/552

Additional nitrogen bonded directly to the -C(=X)- group (e.g., ureas, etc.):

(under subclass 551) Compositions wherein the -C(=X)- group is further bonded directly to an additional nitrogen.

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