Alarm system backup
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 16, 1998
Issued Date -
N/A
app pub date -
Sep 17, 1996
filing date -
Sep 6, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A security system add-on device is disclosed that provides a false phone line apparatus for tricking an intruder into believing that they have cut the building phone line. The apparatus includes a close loop wire pair that acts as a false phone line and is coupled to a false line cut detector. When the false line is cut, the cut detector signals the security system that a breach of security has occurred.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully