US PATENT SUBCLASS 419 / 62
.~ Powder pretreatment

Current as of: June, 1999
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419 /   HD   POWDER METALLURGY PROCESSES

61  DF  FORMING ARTICLES BY UNITING RANDOMLY ASSOCIATED METAL PARTICLES {2}
62.~ Powder pretreatment {3}
63  DF  .~.~> Includes a chemical reaction
64  DF  .~.~> Includes coating of particles
65  DF  .~.~> Includes adding a binder material

DEFINITION

Classification: 419/62

Powder pretreatment:

(under subclass 61) Processes which include preliminary significant treatment, preparation or manufacture of the powder or particular material, prior to any compacting or consolidation.