Inflatable crown liner for a protective helmet
USD475486S1 · kind S1 · design
103Cited by
10References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2002 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jun 3, 2017 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.