US PATENT SUBCLASS 340 / 815.45
.~ Using light emitting diodes
Current as of:
June, 1999
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340 /
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COMMUNICATIONS: ELECTRICAL
815.4
DF
VISUAL INDICATION
{18}
815.45
.~ Using light emitting diodes
DEFINITION
Classification: 340/815.45
Using light emitting diodes:
(under subclass 815.4) Subject matter in which the signal indicating device is a light emitting semiconductor device.
SEE OR SEARCH CLASS
250, Radiant Energy,
214, for light amplifiers and subclasses 552+ for solid state light source, including matrices and array, per se.
257, Active Solid-StateDevices (e.g., Transistors, Solid-State Diodes),
13, 79 through 103, and 918 for incoherent light emitting injection luminescent devices.
345, Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems,
39, 47, and 82+ for light emitting diode display in selective display systems.
