Composite metal sheetings
US3948614A · kind A · utility
7Cited by
6References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1972 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Dec 6, 1992 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31699
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A composite metal sheet is formed by two metal sheets, each having a plain face and a face having raised portions. The faces having the raised portions are juxtaposed to each other and swelled. The metal sheets may also be flat on both surfaces with a metal spacer welded therebetwee. A plastic filler is also contemplated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.