Running gear for a railway vehicle provided with an improved transversal suspension
CA 2521332 C · Owner: Scothern, Robert · Inventors: Mather, Geoff; Scothern, Robert; Zimmergren, Patrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
least one wheelset, a running gear frame (3) which is supported on said wheelset by means of a primary suspension (4) a secondary suspension for, supporting a coach body (5) on the running gear frame and a transversal suspension (24, 25), wherein the secondary suspension is formed preferably by air springs (6). In order to better control transversal and rolling motions with, a low mutual interaction, the transversal suspension (24 25) and/or a, transversal damping are arranged above the secondary suspension (6) and below the bottom of the coach body (5).
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 April 7, 2004 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 7, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 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.