Gutter filtering device
US7544288B1 · kind B1 · utility
20Cited by
68References
7Claims
0Family size
Inventor
Key dates
| Filing date | May 16, 2008 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | May 16, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D13/0767
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A filter sphere for preventing debris from entering a downspout of a rain gutter. The filter sphere is a hollow, perforated sphere with a diameter slightly less than the width of a normal rain gutter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.