Headphone
USD471176S1 · kind S1 · design
89Cited by
8References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2002 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Mar 4, 2017 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.