Portable alarm system
US5777551A · kind A · utility
332Cited by
25References
13Claims
0Family size
Inventor
Key dates
| Filing date | Sep 23, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Sep 23, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/3431
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A portable alarm system is disclosed in which the alarm functions are contained within a portable enclosure, communication is maintained between the alarm system and wireless security contacts placed at points of entry, and the alarm is capable of initiating a telephone call to a security monitor state either by conventional hard-wired telephone lines within a building or by cellular transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.