US PATENT SUBCLASS 205 / 735
.~.~.~ 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}
724  DF  .~.~ Object protection {8}
735.~.~.~ Ferrous metal {2}
736  DF  .~.~.~.~> Stainless steel
737  DF  .~.~.~.~> Using anode containing free carbon (e.g., graphite, carbon fibers, etc.)

DEFINITION

Classification: 205/735

Ferrous metal:

(under subclass 724) Subject matter in which the object protected is iron (Fe) or contains at least 50 percent iron.

SEE OR SEARCH THIS CLASS, SUBCLASS:

731+, for electrolytic protection of a ferrous metal object by internal battery action.

741, for other electrolytic treatment of a metal or metal alloy containing iron.