Electricity: circuit makers and breakers – Electric switch details – Indicators
Reexamination Certificate
2006-12-26
2006-12-26
Friedhofer, Michael (Department: 2832)
Electricity: circuit makers and breakers
Electric switch details
Indicators
C200S341000
Reexamination Certificate
active
07154059
ABSTRACT:
An unevenly illuminated keyboard has a mask element between a luminous element and keycaps which are illuminated by the luminous element. The mask element has a permeable zone corresponding to each keycap and an impermeable zone on the neighboring area of the keycap but not beneath thereof such that the light emitted from the luminous element projects and illuminates the individual keycap to form the unevenly illuminated keyboard that illuminates only the keycaps.
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Friedhofer Michael
Klaus Lisa
Zippy Technoloy Corp.
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