US PATENT SUBCLASS 75 / 631
.~.~.~.~ Noble metal, singly or in combination

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
414  DF  .~.~ At 300 degrees C or greater (e.g., pyrometallurgy, etc.) {7}
585  DF  .~.~.~ Nonferrous {25}
631.~.~.~.~ Noble metal, singly or in combination {4}
632  DF  .~.~.~.~.~> Palladium(Pd)
633  DF  .~.~.~.~.~> Platinum(Pt)
634  DF  .~.~.~.~.~> Silver(Ag) {2}
637  DF  .~.~.~.~.~> Gold(Au)

DEFINITION

Classification: 75/631

Noble metal, singly or in combination:

(under subclass 585) Process in which a Noble metal (i.e.,

Ruthenium (Ru), Rhodium (Rh), Palladium (Pd), Osmium (Os), Iridium (Ir), Platinum (Pt), Silver (Ag), Gold (Au)) is produced or a metal that contains over 50 percent by weight Noble metal, singly or in combination, is treated.