US PATENT SUBCLASS 205 / 707
.~.~.~.~ From precious metal or precious metal alloy

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

687  DF  ELECTROLYTIC MATERIAL TREATMENT (PRODUCT, PROCESS, AND ELECTROLYTE COMPOSITION) {8}
704  DF  .~ Metal or metal alloy {3}
705  DF  .~.~ Removing foreign material (e.g., cleaning, etc.) {7}
706  DF  .~.~.~ Internal battery action {1}
707.~.~.~.~ From precious metal or precious metal alloy {1}
708  DF  .~.~.~.~.~> Using anode containing aluminum

DEFINITION

Classification: 205/707

From precious metal or precious metal alloy:

(under subclass 706) Subject matter in which foreign material is removed from a base metal or metal alloy containing silver (Ag), gold (Au), or a platinum group metal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

718, for electrolytic removal of a precious metal layer from a ferrous metal base.

767, for electrolytic treatment of a solid containing a precious metal compound.