Ear warmer having an external frame
USD541482S1 · kind S1 · design
20Cited by
149References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2004 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Apr 24, 2021 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.