Rail road car truck and fittings therefor
CA 2473264 C · Owner: National Steel Car Limited · Inventors: Forbes, James W.; Hematian, Jamal
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rail road freight car truck has a truck bolster and a pair of side frames the truck , bolster being mounted transversely relative to the side frames. The mounting interface , between the ends of the axles and the sideframe pedestals allows lateral rocking motion of , the sideframes in the manner of a swing motion truck. The lateral swinging motion is , combined with a longitudinal self steering capability. The self steering capability may be , obtained by use of a longitudinally oriented rocker that may tend to permit resistance to , deflection that is proportional to the weight carried across the interface. The truck may have , auxiliary centering elements mounted in the pedestal …
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
- Filed July 8, 2004 and granted September 27, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 8, 2026.
- 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.