Two element shingle
US5488807A · kind A · utility
90Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1994 |
| Grant date | Feb 6, 1996 |
| Priority date | — |
| Expiry date | Jun 10, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31815
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A decorative shingle has a first element including a reinforcing web, a first asphaltic binder, and a first adherent surfacing material. A second element including discontinuous sections is overlaid on the first element. The second element includes a layer of a second asphaltic binder and a second adherent surfacing material to provide a decorative effect. The second asphaltic binder has greater elongation at low temperature than the first asphaltic binder, providing greater resistance to environmental stresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.