Telephone indicator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4544808
SERIAL NO

06542038

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An indicator for use with a multiline telephone, which displays the status of both a local and called telephone set. The status indicator is comprised of a first indicator enclosed within a second for displaying by a shade or color the status of a called line, and a second indicator at least partly surrounding the first for partly displaying the first for displaying by shade or color with the second indicator the status of the calling line, whereby a party observing the indicator obtains simultaneous indication of the status of the calling and the called lines. Preferably the first indicator is a circle, enclosed within the second indicator which is a square, both being elements of a liquid crystal display. Each square indicator can be located next to a line access pushbutton with which it is associated.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
MITEL KNOWLEDGE CORPORATIONOTTAWA ONTARIO K2K 2W7

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kirkland, Lester Kanata, CA 3 72
Milne, Robin I Nepean, CA 1 5

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