Roofing shingles
US10458119B2 · kind B2 · utility
7Cited by
12References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Aug 21, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D2001/005
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A shingle including a substrate having a top surface and a bottom surface, an asphalt layer, a layer of granules, and a spacing layer is provided. The asphalt layer covers at least a portion of the top surface and the layer of granules is adhered to the asphalt layer. The spacing layer is attached beneath at least a portion of the bottom surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.