US PATENT SUBCLASS 257 / 42
SEMICONDUCTOR IS SELENIUM OR TELLURIUM IN ELEMENTAL FORM

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

42SEMICONDUCTOR IS SELENIUM OR TELLURIUM IN ELEMENTAL FORM

DEFINITION

Classification: 257/42

SEMICONDUCTOR IS SELENIUM OR TELLURIUM IN ELEMENTAL FORM:

(under the class definition) Subject matter including a semiconductor material comprised of selenium or tellurium in

elemental form (i.e., not in a compound).

SEE OR SEARCH CLASS

430, Radiation Imagery Chemistry: Process, Composition or Product,

57.8, for electrophotographic plates containing selenium or a selenium alloy.