Audio subwoofer
USD874432S1 · kind S1 · design
10Cited by
35References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Feb 4, 2035 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.