Knife sharpener
USD299308S · kind S · design
25Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Jan 10, 2003 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.