Multipurpose railroad freight car
CA 1322126 C · Owner: Johnstown America Corporation · Inventors: Brown, James Theodore; St. Laurent, Donat Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multipurpose railroad freight car suitable for carrying either bulk freight or granular freight. the floor of the freight car comprises a pair of opposed reversible conveyors. Also disclosed is a transverse wiper bar to guide the granular freight along the floor of the freight car to a central discharge chute.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 14, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 14, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.