US PATENT SUBCLASS 428 / 634
.~.~.~ Free carbon containing 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}
621  DF  .~.~ With additional, spatially distinct nonmetal component {7}
634.~.~.~ Free carbon containing component

DEFINITION

Classification: 428/634

(under subclass 621) Subject matter in which the nonmetal component is uncombined carbon.

SEE OR SEARCH CLASS

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,

243, for a consolidated metal powder composition containing elemental carbon.