Headphone
USD552077S1 · kind S1 · design
204Cited by
10References
1Claims
0Family size
Inventors
Key dates
| Filing date | Jun 13, 2006 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Oct 2, 2021 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.