Window screen alarm
US4814750A · kind A · utility
11Cited by
28References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Nov 20, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/126
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A protective screen with burglar alarm includes a full screen wired in a closed circuit fashion connected to a keyed box alarm. The unit is self-contained with each window having its own power source and alarm, including preferably audio and visual alarms. A magnetic connection is also provided so that if the screen is pushed out of its frame without actually cutting the screen, the alarm will sound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.