Audio listening system
USD637998S1 · kind S1 · design
166Cited by
16References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2010 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | May 17, 2025 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.