US PATENT SUBCLASS 428 / 552
.~.~.~.~ Entirely inorganic


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}
546  DF  .~ Having metal particles {4}
548  DF  .~.~ Composite; i.e., plural, adjacent, spatially distinct metal components (e.g., layers, etc.) {5}
551  DF  .~.~.~ Nonmetal component {1}
552.~.~.~.~ Entirely inorganic


DEFINITION

Classification: 428/552

(under subclass 551) Subject matter in which the nonmetal component contains no organic material.

(1) Note. Where the nonmetal component is functionally defined and is generic to both organic and inorganic materials, e.g., "an insulating layer", the patent is placed in subclass 551 and is not-cross-referenced here.

(2) Note. "Enamel" without a further description, is presumed to be inorganic; "paint" is presumed to be organic.