Knife sharpener
USD303209S · kind S · design
48Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1986 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Sep 5, 2003 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.