Temporary door installation for grain-carrying freight car
US3991807A · kind A · utility
0Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 23, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Jul 23, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60J5/0497
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A temporary door installation for a grain-carrying freight car wherein steel strapping of the character used in the temporary doors themselves is employed for a cross-tie and reinforced by wooden vertical members on the outside of the temporary doors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.