Vehicle security system
US4137985A · kind A · utility
32Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1977 |
| Grant date | Feb 6, 1979 |
| Priority date | — |
| Expiry date | Nov 25, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5978
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle security system includes a door locking mechanism and control circuitry which prevents access to the vehicle interior unless a door lock key is used thus making it unnecessary to specifically lock the doors upon exiting the vehicle. Steering shaft lock means are also energizable by operation of the door lock key permitting elimination of the ignition key and lock cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.