Keyboard
USD307748S · kind S · design
14Cited by
12References
1Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 7, 1987 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | May 8, 2004 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.