US PATENT SUBCLASS 75 / 715
.~.~.~.~ Removing coating to recover free metal from substrate or coating

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}
710  DF  .~.~ Below 300 degrees C {2}
711  DF  .~.~.~ Using nonmetallic material which is liquid under standard conditions (e.g., hydrometallurgy, etc.) {11}
715.~.~.~.~ Removing coating to recover free metal from substrate or coating {1}
716  DF  .~.~.~.~.~> From Tin(Sn) scrap or Tin plate

DEFINITION

Classification: 75/715

Removing coating to recover free metal from substrate or coating:

(under subclass 711) Process wherein a coating is removed from a substrate and free metal is recovered from either the substrate or coating.

SEE OR SEARCH CLASS

134, Cleaning and Liquid Contact With Solids, for cleaning of metallic materials, per se. If a free metal is recovered from a cleaning solution, the original goes to Class 75 with a mandatory cross to Class 134 for cleaning. If the scrap or waste product is treated to recover a free metal substrate, the original goes to Class 75.

216, Etching a Substrate: Processes, for etching processes.

252, Compositions,

79.1, 79.5 for etching or brightening compositions or subclass 364 for solvent compositions useful for leaching or dissolving metal substrates.

510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions, appropriate subclasses for compositions designed to clean specialized metallic articles or bare metal substrates, per se. 521, Synthetic Resins or Natural Rubbers, for processes of treating scrap or waste to recover a solid polymer therefrom. If free metal is recovered, the original goes to Class 75 with a mandatory cross to Class 521 if the solid polymer is also recovered.