Nasal mask
USD539901S1 · kind S1 · design
42Cited by
25References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2005 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Apr 3, 2021 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.