Water resistant roofing underlayment
US10655331B2 · kind B2 · utility
2Cited by
3References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2018 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Jul 12, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/14
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An article comprising a water resistant underlayment portion is provided comprising a first non-woven fabric layer, a film layer, a first bituminous material layer, a second non-woven fabric layer, a woven fabric layer, and a second bituminous material layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.