Crawl space door with interior and exterior flange
USD441874S · kind S · design
3Cited by
7References
1Claims
0Family size
Inventors
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | May 8, 2015 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.