Grain door and method of making
US3963550A · kind A · utility
0Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1974 |
| Grant date | Jun 15, 1976 |
| Priority date | — |
| Expiry date | Oct 21, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1074
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A grain door and method of making the same wherein thin metallic straps having arcuate ends are partially adhesively secured to a double-face corrugated medium, and wherein the straps may be equipped with novel fittings for extension bands and are also adapted for receipt of center braces having horizontally flat tangs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.