Face mask for respiratory therapy
USD388873S · kind S · design
24Cited by
6References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Jan 6, 2012 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.