Mask valve
USD918379S1 · kind S1 · design
3Cited by
7References
1Claims
0Family size
Inventor
Key dates
| Filing date | Aug 26, 2020 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | May 4, 2036 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.