US PATENT SUBCLASS 428 / 674
.~.~.~.~ Cu-base component


Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

544  DF  ALL METAL OR WITH ADJACENT METALS {31}
615  DF  .~ Composite; i.e., plural, adjacent, spatially distinct metal components (e.g., layers, joint, etc.) {15}
655  DF  .~.~ Transition metal-base component {4}
668  DF  .~.~.~ Group VIII or IB metal-base component {10}
674.~.~.~.~ Cu-base component {2}
675  DF  .~.~.~.~.~> Next to Co-, Cu-, or Ni-base component
676  DF  .~.~.~.~.~> Next to Fe-base component {1}


DEFINITION

Classification: 428/674

(under subclass 668) Subject matter in which a component contains 40 percent or more of copper.

SEE OR SEARCH THIS CLASS, SUBCLASS:

618, 656, 669, and 671, to complete a search for copper-base components.

SEE OR SEARCH CLASS

148, Metal Treatment, appropriate subclasses for processes of treating solid or semi-solid metal to modify or maintain the internal physical structure (i.e., microstructure) or chemical properties of metal. If metal casting, fusion bonding, machining, or working is involved, there is a requirement of significant heat treatment as described in section III, A, of the Class 148 definition. Class 148,

240+, for processes of reactively coating a metal substrate wherein an external agent combines with a component of the metal substrate to form a coating thereon containing a component of the metal substrate. 205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,

239+, for coating a substrate with an alloy of copper from an aqueous bath, and subclasses 291+ for such a coating process with copper, per se.

420, Alloys or Metallic Compositions,

469+, for a copper base alloy.