Key matrix for a telephone handset
USD441357S · kind S · design
52Cited by
19References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 7, 2000 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | May 1, 2015 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.