Directional microphone
USD381024S · kind S · design
23Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1995 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Jul 15, 2011 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.