US PATENT SUBCLASS 508 / 166
.~.~.~ Sulfide, selenide, or telluride of heavy metal or aluminum (e.g., lithopone, 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}
154  DF  .~ Inorganic compound (except water) (Overbased or carbonated organic acidic compounds are not classified in this subclass or its indents on the basis of inorganic overbasing or carbonating agents; the overbased or carbonated compounds are treated as complexes, and are classified with the particular organic acidic compound) {8}
165  DF  .~.~ The inorganic compound contains heavy metal or aluminum {4}
166.~.~.~ Sulfide, selenide, or telluride of heavy metal or aluminum (e.g., lithopone, etc.) {1}
167  DF  .~.~.~.~> The heavy metal is molybdenum or tungsten (e.g., molybdenum sulfide, etc.) {2}


DEFINITION

Classification: 508/166

Sulfide, selenide, or telluride of heavy metal or aluminum (e.g., lithopone, etc.):

(under subclass 165) Compositions wherein the heavy metal or aluminum is present as a sulfide, a selenide or a telluride.