US PATENT SUBCLASS 75 / 411
.~.~.~ Copper(Cu)

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
392  DF  .~ Producing or treating free metal {10}
407  DF  .~.~ Filtering vaporous or liquid metal {5}
411.~.~.~ Copper(Cu)

DEFINITION

Classification: 75/411

Copper (Cu):

(under subclass 407) Process in which the vaporous or liquid metal contains over 50 percent by weight Copper (Cu).