Optical trackball
USD410638S · kind S · design
218Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1998 |
| Grant date | Jun 8, 1999 |
| Priority date | — |
| Expiry date | Jun 8, 2013 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.