Personal respiratory protection device that has a three panelled look
USD459471S1 · kind S1 · design
22Cited by
20References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1999 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Jun 25, 2016 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.