US PATENT SUBCLASS 508 / 497
.~.~.~.~.~ Non-carboxylate chalcogen attached indirectly to the -C(=O)O- groups by nonionic bonding (e.g., tartaric acid esters, 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}
459  DF  .~ Organic -C(=O)O- compound {19}
463  DF  .~.~ Specified compound wherein the single bonded oxygen is bonded oxygen is bonded directly to an additional carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon (i.e., specified carboxylic acid ester) {6}
465  DF  .~.~.~ Plural -C(=O)O- groups attached directly or indirectly to each other by nonionic bonding (e.g., estolides of hydroxy carboxylic acids, etc.) {8}
496  DF  .~.~.~.~ Mono-, di-, or polyester of polycarboxylic acid {3}
497.~.~.~.~.~ Non-carboxylate chalcogen attached indirectly to the -C(=O)O- groups by nonionic bonding (e.g., tartaric acid esters, etc.)

DEFINITION

Classification: 508/497

Non-carboxylate chalcogen attached indirectly to the -C(=O)O- groups by nonionic bonding (e.g., tartaric acid esters, etc.):

(under subclass 496) Compositions wherein the -C(=O)O- groups are attached indirectly to a chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) that is not part of a -C(=O)O- group.

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