Mask cushion
USD428988S · kind S · design
62Cited by
14References
1Claims
0Family size
Inventor
Key dates
| Filing date | Mar 12, 1999 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | Aug 1, 2014 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.