US PATENT SUBCLASS 428 / 601
.~.~ Discontinuous surface 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}
600  DF  .~ Having variation in thickness {2}
601.~.~ Discontinuous surface component


DEFINITION

Classification: 428/601

(under subclass 600) Subject matter in which the thickness variation of the material is due, at least in part, to the presence at the surface of the material of a component which does not cover the entire surface of the material.

(1) Note. This subclass only provides for the metal preform to be subsequently used in a printed circuit. If such a preform is labeled a "printed circuit" in a claim, but only the preform structure is positively recited, proper classification is in Class 428.

SEE OR SEARCH THIS CLASS, SUBCLASS:

141+, for nonmetallic* stock-material* having a nonuniform layer or component.

SEE OR SEARCH CLASS

29, Metal Working,

846+, for methods of making a printed circuit on a planiform insulator. 174, Electricity: Conductors and Insulators,

250+, for structured conductors, conduits and cables in a preformed panel circuit arrangement, and subclasses 126.1+ for conductor structures peculiar to that class.