Portable water filter
USD249275S · kind S · design
35Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1977 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Sep 5, 1992 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.