Headphone earpiece
USD299129S · kind S · design
36Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1986 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Dec 27, 2002 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.