US PATENT SUBCLASS 428 / 636
.~.~ Adjacent, identical composition, components

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}
636.~.~ Adjacent, identical composition, components {1}
637  DF  .~.~.~> Group VIII or IB metal-base {1}

DEFINITION

Classification: 428/636

(under subclass 615) Subject matter comprising adjacent components having an identical composition.

(1) Note. The components, while having identical chemical compositions, often will have different physical properties

because of a difference in their manufacturing history, e.g., one component may be a substrate, while the other is a coating.

(2) Note. Where the claims of a patent are such that adjacent components may be the same or different in their composition, e.g., due to overlapping in the claimed ranges of alloying ingredients, generic claiming, etc., the patent is placed in this subclass (636) as an original, and is cross-referenced to the appropriate subclass below. Where the components are always identical, patents classified herein are not cross-referenced below, e.g., to subclass 654.