Hollow ball having openings distributed about exterior surface
USD489494S1 · kind S1 · design
58Cited by
16References
1Claims
0Family size
Inventor
Key dates
| Filing date | Feb 5, 2002 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | May 4, 2018 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.