Backflow prevention valve
USD347465S · kind S · design
9Cited by
5References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 26, 1993 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | May 31, 2008 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.