US PATENT SUBCLASS 508 / 141
.~.~ With non-siliceous inorganic heavy metal or aluminum compound as additional component or surface-treating agent (e.g., molybdenum disulfide, alumina, 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}
136  DF  .~ Silicon dioxide, silicic acid, orthosilicate, or metasilicate, including surface-treated (e.g., clays, onium clays, estersils, etc.) {12}
141.~.~ With non-siliceous inorganic heavy metal or aluminum compound as additional component or surface-treating agent (e.g., molybdenum disulfide, alumina, etc.)

DEFINITION

Classification: 508/141

With non-siliceous inorganic heavy metal or aluminum compound as additional component or surface-treating agent (e.g., molybdenum disulfide, alumina, etc.):

(under subclass 136) Compositions which contain, in addition to the silicon dioxide, silicic acid, orthosilicate, or metasilicate, a compound which contains heavy metal or aluminum but does not contain silicon; the compound may be present as an additional component or as a surface-treating agent for the silicon dioxide, silicic acid, orthosilicate, or metasilicate.

(1) Note. Examples of components provided for herein are molybdenum sulfide and aluminum sulfate.

(2) Note. Arsenic is considered a heavy metal.

(3) Note. Heavy metals are those with a specific gravity greater than 4.0.