US PATENT SUBCLASS 508 / 422
.~.~ The phosphorus 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}
421  DF  .~ Organic phosphorus compound, wherein the phosphorus is single bonded directly to chalcogen by nonionic bonding (e.g., phosphorus acids, esters, etc.) {7}
422.~.~ The phosphorus is in a ring

DEFINITION

Classification: 508/422

The phosphorus is in a ring:

(under subclass 421) Compositions wherein the phosphorus is a member of a ring.

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

[figure]