US PATENT SUBCLASS 75 / 357
.~.~.~ With step at 300 degrees C or greater

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}
343  DF  .~ Producing or purifying free metal powder or producing or purifying alloys in powder form (i.e., named or of size up to 1,000 microns in its largest dimension) {9}
354  DF  .~.~ Including comminution {4}
357.~.~.~ With step at 300 degrees C or greater {3}
358  DF  .~.~.~.~> Use of salt bath
359  DF  .~.~.~.~> Reduction
360  DF  .~.~.~.~> Use of gas

DEFINITION

Classification: 75/357

With step at 300 degrees C or greater:

(under subclass 354) Process in which at least one process step is performed at a temperature of 300 degrees C or greater.