Helmet ear protector
USD400311S · kind S · design
27Cited by
9References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 21, 1997 |
| Grant date | Oct 27, 1998 |
| Priority date | — |
| Expiry date | Oct 27, 2012 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.