Combined pushdown/keeper for double hung window
USD520335S1 · kind S1 · design
3Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2003 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | May 9, 2020 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.