Headband portion of headphone device
USD857654S1 · kind S1 · design
25Cited by
123References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 9, 2018 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Aug 27, 2034 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.