Knife sharpener
USD317554S · kind S · design
4Cited by
12References
1Claims
0Family size
Inventor
Key dates
| Filing date | Jun 6, 1988 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Jun 18, 2005 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.