Traffic light devices and methods of use
US9881499B1 · kind B1 · utility
0Cited by
9References
25Claims
0Family size
Inventor
Key dates
| Filing date | Mar 2, 2017 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Mar 2, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/096
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Traffic light devices and methods of use are provided herein. A traffic light may include a first lighting element segment that can be activated with a first color, a second lighting element segment that can be activated with a second color or a third color, and a third lighting element segment surrounds the second lighting element segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.