Vehicle alarm system
US5850173A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1996 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Oct 15, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2325/304
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle alarm system with a sensor for detecting a change in the alarm system from an armed not triggered state to an armed triggered state, an override switch operable only when the alarm system is in the armed triggered state, to stop the alarm from sounding in the armed triggered state, an ignition switch, an ignition sensor, and a controller for switching the alarm system from the armed triggered state to the disarmed state when the ignition sensor supplies a signal indicating ignition on while a timing circuit is activated and maintaining the alarm system in an armed triggered state when no ingition signal is supplied while the timing circuit is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.