Earphone
USD539268S1 · kind S1 · design
159Cited by
15References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2006 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Mar 27, 2021 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.