Mass transit safety notification system and device
US11827257B2 · kind B2 · utility
1Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2018 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jul 5, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L2205/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system and device that will notify roadway maintenance workers of an approaching mass transit vehicle and, conversely, will notify the operators and administrators of mass transit vehicles of roadway maintenance workers within the vicinity of an approaching section of track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.