US PATENT SUBCLASS 428 / 632
.~.~.~ Oxide-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}
632.~.~.~ Oxide-containing component {1}
633  DF  .~.~.~.~> Plural oxides

DEFINITION

Classification: 428/632

(under subclass 621) Subject matter in which the nonmetal is, or contains, an oxide.

SEE OR SEARCH THIS CLASS, SUBCLASS:

469+, for a composite product wherein the layer adjacent the metal layer contains a metal salt or an oxide.