Headphone earpiece
USD326855S · kind S · design
68Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1989 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Jun 9, 2006 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.