Foldable duct comprising laminated foil on inside and outside
US10330222B2 · kind B2 · utility
0Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2016 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Mar 4, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2597/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention concerns a foldable duct (4) made of glass or stone fibers and binder agent having a foil (1) laminated thereon, on the inside and outside of the duct, wherein the foil (1) at least comprises:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.