Portion of an anti-asphyxia valve for a respiratory mask
USD579552S1 · kind S1 · design
37Cited by
5References
1Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 15, 2007 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Oct 28, 2022 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.