Rigid protective helmet
USD569555S1 · kind S1 · design
3Cited by
40References
1Claims
0Family size
Inventor
Key dates
| Filing date | Mar 15, 2007 |
| Grant date | May 20, 2008 |
| Priority date | — |
| Expiry date | May 20, 2022 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.