Omnibus alarm signaling system
US4841277A · kind A · utility
4Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1987 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Sep 3, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2025/1013
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An alarm signaling system, in which a pair of warning lights can be activated from inside the omnibus under emergency conditions, but in which hidden control apparatus prevents the deactivation of the warning lights from within the omnibus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.