US PATENT SUBCLASS 252 / 387
.~ Anti-corrosion


Current as of: June, 1999
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252 /   HD   COMPOSITIONS

380  DF  PRESERVATIVE AGENTS {3}
387.~ Anti-corrosion {1}
388  DF  .~.~> Organic compound containing {6}


DEFINITION

Classification: 252/387

(under subclass 380) Compositions specialized and designed for, or peculiar to, use as or in agents for preventing, inhibiting, or reducing, corrosion or chemical attack of solid metals, or other solid materials, of receptacles or apparatus.

(1) Note. For compositions each of which contains a main substance and an agent for inhibiting corrosion by the main substance, search where the main substance is classifiable.

SEE OR SEARCH THIS CLASS, SUBCLASS:

381+, for anti-caking, separative, or protective coatings or zones.

397+, for agents which inhibit corrosion by inhibiting formation of corrosive products of chemical change.

SEE OR SEARCH CLASS 106, Compositions: Coating or Plastic, particularly

14.05, for corrosion-inhibiting coating compositions.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,

7+, for process of maintaining an environment nondestructive to metal.

510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions,

255, 258+, 335+, 401+, etc., for cleaning compositions that include anticorrosion agents.