Breathing air filtration device
USD571457S1 · kind S1 · design
12Cited by
55References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2005 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Jun 17, 2022 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.