US PATENT SUBCLASS 205 / 718
.~.~.~.~ Precious metal removed

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}
717  DF  .~.~.~ Entire identifiable elemental layer or portion removed (e.g., stripping, etc.) {4}
718.~.~.~.~ Precious metal removed

DEFINITION

Classification: 205/718

Precious metal removed:

(under subclass 717) Subject matter in which the elemental layer or portion removed contains silver (Ag), gold (Au), or a platinum group metal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

707+, for electrolytic removal of foreign material from a precious metal or precious metal alloy by internal battery action.