Duplex speakerphone
USD728507S1 · kind S1 · design
32Cited by
15References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 21, 2013 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | May 5, 2029 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.