Improvements in the non pneumatic tires
CA 2255268 C · Owner: Ims, Horst Otto Herbert · Inventors: Ims, Horst Otto Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A non-pneumatic tire for mounting upon a wheel hub having an axis of rotation as an exterior torus and an interior torus about the axis. A wall connects the, exterior torus to the interior torus and follows an undulating curved line to provide, flexibility between the tori.
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 December 11, 1998 and granted September 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2020.
- 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.