Propulsion unit for a wheelchair
CA 2487630 C · Owner: Martel, Patrick · Inventors: Schertenleib, Daniel; Montiglio, Michel; Martel, Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a kit providing a wheelchair adaptable in one of a hand powered mode and a motorized mode. The kit comprises: a wheelchair frame with two wheels rotatably mounted; a propulsion unit frame having at least one motor mounted thereto a right and a left power driven wheels operably and distinctly coupled to the at least one motor the right and left power driven wheels being characterized by a respective first and second rotation speeds the at least one motor being coupled with at least one battery and a controller for controlling the first and second rotation speeds; and a mounting structure having at least one first mounting element carried by the propulsion unit frame …
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 November 12, 2004 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 12, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.