Respiratory air flow measuring device
USD413825S · kind S · design
13Cited by
19References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1998 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Sep 14, 2013 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.