US PATENT SUBCLASS 205 / 731
.~.~.~.~ 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}
730  DF  .~.~.~ Internal battery action (e.g., using sacrificial anode, etc.) {1}
731.~.~.~.~ Ferrous metal {2}
732  DF  .~.~.~.~.~> Using anode containing aluminum
733  DF  .~.~.~.~.~> Using anode containing magnesium

DEFINITION

Classification: 205/731

Ferrous metal:

(under subclass 730) Subject matter in which the object protected is iron (Fe) or contains at least 50 percent iron.

SEE OR SEARCH THIS CLASS, SUBCLASS:

735+, for electrolytic protection of a ferrous metal object without employing internal battery action.

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