Headphone
USD813844S1 · kind S1 · design
26Cited by
72References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2015 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Mar 27, 2033 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.