US PATENT SUBCLASS 205 / 712
.~.~.~ Nonelemental material from ferrous metal

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.~.~.~ Nonelemental material from ferrous metal {2}
713  DF  .~.~.~.~> Using fused bath (e.g., molten salt, etc.)
714  DF  .~.~.~.~> Using acidic electrolyte {2}

DEFINITION

Classification: 205/712

Nonelemental material from ferrous metal:

(under subclass 705) Subject matter in which the foreign material is a chemical compound of two or more atoms and the metal or metal alloy treated is iron (Fe) or contains at least 50 percent iron.

SEE OR SEARCH THIS CLASS, SUBCLASS:

217+, for nonaqueous liquid cleaning of a ferrous metal base combined with electrolytic coating.