Roofing material
US7851051B2 · kind B2 · utility
45Cited by
26References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2005 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Feb 20, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3179
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An improved roofing material having an upper and lower surface in which a thin layer comprising re-melted polypropylene or other suitable plastic is adhered to at least a portion of its lower surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.