Emergency siren receiver for controlling traffic lights
USD430054S · kind S · design
3Cited by
4References
1Claims
0Family size
Inventor
Key dates
| Filing date | Mar 6, 2000 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Aug 29, 2014 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.