Steered axles for railroad (and other) vehicles
CA 2000748 A1 · Owner: Smith, Roy E. · Inventors: Smith, Roy E.; Smith, Roy E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Steered Axles for Railroad (and other) Vehicles Abstract, In a truck having a rigid frame and two or more axles one axle is, rigidly connected to the frame and the others are connected to the frame through pairs of non-parallel links. The links control the attitudes of the axles so that simultaneous lateral and yaw motions occur thus, ensuring true centring and radial alignment of all of the axles.
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 October 16, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2011.
- 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.