Ball-marker pen
USD538852S1 · kind S1 · design
6Cited by
10References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2005 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Mar 20, 2021 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.