Electricity: circuit makers and breakers – Electric switch details – Indicators
Reexamination Certificate
2011-07-12
2011-07-12
Luebke, Renee (Department: 2833)
Electricity: circuit makers and breakers
Electric switch details
Indicators
C200S314000
Reexamination Certificate
active
07977593
ABSTRACT:
The disclosure relates to a key plunger and a key assembly for a key of an electronic device. The plunger comprises: a stalk made of a first material allowing light to pass through and a body section connected to the top of the plinth. In the plunger, the body section is made of a second material and shaped to fit snugly within an interior of a cap for the key and to extend horizontally about the stalk. The second material is a translucent, light-diffusing material; the first material allows more light to pass therethrough than the second material. The key assembly comprises: a key plunger; a key cap shaped to fit over the key plunger; and a backlight to illuminate an interior of the key cap. The backlight may be located underneath the key plunger and to a side of the stalk.
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Kyowski Timothy
Ng Albert
Pang Suzanne Man
Caroc Lheiren Mae
Luebke Renee
McCarthy Tétrault LLP
Research In Motion Limited
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