Personal respiratory protection device
USD620104S1 · kind S1 · design
36Cited by
22References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1996 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Jul 20, 2024 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.