US PATENT SUBCLASS 75 / 712
.~.~.~.~ Involving mining or in situ operation

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
392  DF  .~ Producing or treating free metal {10}
710  DF  .~.~ Below 300 degrees C {2}
711  DF  .~.~.~ Using nonmetallic material which is liquid under standard conditions (e.g., hydrometallurgy, etc.) {11}
712.~.~.~.~ Involving mining or in situ operation

DEFINITION

Classification: 75/712

Involving mining or in situ operation:

(under subclass 711) Process which involves operations at a mine or in situ location of the metalliferous material.

SEE OR SEARCH CLASS

299, Mining or In Situ Disintegration of Hard Material, for processes involving mining or in situ operation that do not utilize chemical reduction to the free metal state.