US PATENT SUBCLASS 428 / 618
.~.~.~ One component Cu-based

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}
616  DF  .~.~ Deflectable by temperature change (e.g., thermostat element) {3}
618.~.~.~ One component Cu-based

DEFINITION

Classification: 428/618

(under subclass 616) Subject matter in which one component of the composite is copper or an alloy containing more than 40% copper.

(1) Note. Subject matter classified herein is not cross-referenced to subclasses 656, 699, 671, or 674.

SEE OR SEARCH CLASS

200, Electricity: Circuit Makers and Breakers,

268, for contact material which constitutes two layers, each one being different from the other.