US PATENT SUBCLASS 75 / 431
.~.~.~.~ Zinc(Zn), Cadmium(Cd), or Mercury(Hg) obtained


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}
414  DF  .~.~ At 300 degrees C or greater (e.g., pyrometallurgy, etc.) {7}
416  DF  .~.~.~ Combined with step at less than 300 degrees C using nonmetallic material which is liquid under standard conditions (e.g., hydrometallurgy, etc.) {8}
431.~.~.~.~ Zinc(Zn), Cadmium(Cd), or Mercury(Hg) obtained


DEFINITION

Classification: 75/431

Zinc (Zn), Cadmium (Cd), or Mercury (Hg) obtained:

(under subclass 416) Process wherein the metal obtained is Zinc (Zn), Cadmium (Cd), or Mercury (Hg).