US PATENT SUBCLASS 205 / 714
.~.~.~.~ Using acidic electrolyte

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}
712  DF  .~.~.~ Nonelemental material from ferrous metal {2}
714.~.~.~.~ Using acidic electrolyte {2}
715  DF  .~.~.~.~.~> Containing one or more phosphoric acids
716  DF  .~.~.~.~.~> Containing nitric acid

DEFINITION

Classification: 205/714

Using acidic electrolyte:

(under subclass 712) Subject matter in which the nonelemental material is removed from ferrous metal using an electrolyte with a pH less than 7.

SEE OR SEARCH THIS CLASS, SUBCLASS:

723, for other removal of foreign material from a metal or metal alloy using an acidic electrolyte.