US PATENT SUBCLASS 419 / 2
.~ Making porous product

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

1  DF  POWDER METALLURGY PROCESSES WITH HEATING OR SINTERING {16}
2.~ Making porous product

DEFINITION

Classification: 419/2

Making porous product:

(under subclass 1) Processes in which a porous or cellular mass is produced during sintering.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5, for processes of infiltration (i.e., impregnating) and producing the porous sintered product.

SEE OR SEARCH CLASS

106, Compositions: Coating or Plastic,

122, and see the note thereunder for other classes involving porous forming.