US PATENT SUBCLASS 508 / 139
.~.~ With elemental sulfur, elemental metal, or alloy as additional component or surface-treating agent

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}
136  DF  .~ Silicon dioxide, silicic acid, orthosilicate, or metasilicate, including surface-treated (e.g., clays, onium clays, estersils, etc.) {12}
139.~.~ With elemental sulfur, elemental metal, or alloy as additional component or surface-treating agent

DEFINITION

Classification: 508/139

With elemental sulfur, elemental metal, or alloy as additional component or surface-treating agent:

(under subclass 136) Compositions which contain, in addition to the silicon dioxide, silicic acid, orthosilicate or metasilicate, an alloy, elemental metal, or elemental sulfur; the elemental sulfur, alloy, or elemental metal may be present as an additional component or as a surface-treating agent for the silicon dioxide, silicic acid, orthosilicate, or metasilicate.