US PATENT SUBCLASS 508 / 442
.~.~.~ With organic chalcogen or nitrogen compound

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}
421  DF  .~ Organic phosphorus compound, wherein the phosphorus is single bonded directly to chalcogen by nonionic bonding (e.g., phosphorus acids, esters, etc.) {7}
441  DF  .~.~ Three divalent chalcogens single bonded directly to trivalent phosphorus {1}
442.~.~.~ With organic chalcogen or nitrogen compound

DEFINITION

Classification: 508/442

With organic chalcogen or nitrogen compound:

(under subclass 441) Compositions which contain, in addition to the organic phosphorus compound, an organic chalcogen compound or an organic nitrogen compound.

(1) Note. An organic chalcogen compound is one wherein chalcogen is attached directly or indirectly by nonionic bonding to carbon of an organic compound. Organic nitrogen compound is similarly defined.

(2) Note. See Notes to the Class Definition for the definition of an organic compound.