Face seal for a respirator
USD642258S1 · kind S1 · design
3Cited by
19References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 2010 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Jul 26, 2025 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.