Speaker or similar article
USD256463S · kind S · design
6Cited by
6References
1Claims
0Family size
Inventors
Key dates
| Filing date | Aug 26, 1977 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Aug 19, 1994 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.