Emergency message display sign
USD280745S · kind S · design
13Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 3, 1983 |
| Grant date | Sep 24, 1985 |
| Priority date | — |
| Expiry date | Sep 24, 1999 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.