Drain sealing device
US6530722B1 · kind B1 · utility
44Cited by
9References
26Claims
0Family size
Inventors
Key dates
| Filing date | Sep 14, 2001 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Sep 14, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F1/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drain seal for rapidly sealing the apertures in a drain grate, the drain seal composed of a mat of polymeric material and having a pair of opposing sealing surfaces and internally disposed reinforcement members to increase structural integrity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.