Electricity: circuit makers and breakers – Electric switch details – Indicators
Reexamination Certificate
2007-06-12
2007-06-12
Friedhofer, Michael (Department: 2832)
Electricity: circuit makers and breakers
Electric switch details
Indicators
C200S341000
Reexamination Certificate
active
11235151
ABSTRACT:
A lighted switch device, comprising a substrate, a switch provided on a first surface of the substrate, a light source provided on a second surface of the substrate, a key top to press the switch, and a light guide mechanism to guide light emitted from the light source to the key top or a periphery of the key top, the light guide mechanism including a first light guiding member to hold the key top and a second light guiding member disposed to surround the light source, the light emitted from the light source being guided through the second light guiding member to the first light guiding member holding the key top.
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Alpha Corporation
Browdy and Neimark PLLC
Citizen Electronics Co. Ltd.
Friedhofer Michael
Klaus Lisa
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