Telephone annuciator extender
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 21, 1984
Grant Date -
N/A
app pub date -
Apr 8, 1982
filing date -
Apr 8, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for the activation of a remotely located device, such as a lamp or bell, under the control of telephone subscriber tip and ring lines. The apparatus of the present invention is located in the general vicinity of a called telephone subscriber station and is operated to activate and power a remotely located annunciator as a function of detecting ringing signals initiated by a calling telephone subscriber station. The apparatus plugs into a wall outlet for providing actuating power to the remote annunciator(s).
First Claim
Family
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Cited Art Landscape
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