Pencil sharpener case with eraser
USD590444S1 · kind S1 · design
28Cited by
22References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2007 |
| Grant date | Apr 14, 2009 |
| Priority date | — |
| Expiry date | Apr 14, 2023 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.