US PATENT SUBCLASS 356 / 239.3-- .~.~ Patterned surface

US PATENT SUBCLASS 356 / 239.3
.~.~ Patterned surface

Current as of: June, 1999
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356 /	HD	OPTICS: MEASURING AND TESTING

237.1	DF	INSPECTION OF FLAWS OR IMPURITIES {6}
239.1	DF	.~ Transparent or translucent material {4}
239.3		.~.~ Patterned surface

DEFINITION

Classification: 356/239.3

Patterned surface:

(under subclass 239.1) Inspection of transparent or translucent material further comprising an applied design or three dimensional configuration.

SEE OR SEARCH THIS CLASS, SUBCLASS:

237.4, for the detection of a foreign particle or object on a patterned surface.

237.5, for the inspection of a patterned surface.

SEE OR SEARCH CLASS

250, Radiant Energy,

559.44, for a photocell having a circuit producing an output indicating the presence or absence of a marking, pattern, or indicia on the surface of the material.