US PATENT SUBCLASS 508 / 161
.~.~ The inorganic compound contains phosphorus or silicon (e.g., phosphorus sulfide, 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}
161.~.~ The inorganic compound contains phosphorus or silicon (e.g., phosphorus sulfide, etc.) {2}
162  DF  .~.~.~> Oxygen bonded directly to the phosphorus (e.g., orthophosphoric acid, phosphate salts, etc.)
163  DF  .~.~.~> With inorganic compound not containing phosphorus (except water) {1}

DEFINITION

Classification: 508/161

The inorganic compound contains phosphorus or silicon (e.g., phosphorus sulfide, etc.):

(under subclass 154) Compositions wherein silicon or phosphorus is in the inorganic compound.

(1) Note. Examples of components provided for herein are SiH2Cl2 and PCl3.