Synchronized segmentally interchanging pulley transmission system
CA 2652120 C · Owner: Boterro, Paul · Inventors: Doyle, Michael; Wong, Anthony; Boterro, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pulley transmission in one form, comprises a pulley assembly mounted on an axle, the pulley assembly comprising a core pulley first and , second carousels positioned on opposite sides of and separated by the core pulley and a pulley segment set comprising a first pulley segment subset supported by the first carousel and a second pulley segment subset supported by the second carousel. Pulley segments of the first pulley segment subset are slidable from a non-engaging condition towards the second carousel to an engaging condition and pulley segments of the second pulley segment subset are slidable from a non-engaging condition towards the first carousel to an engaging condition. The …
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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 May 19, 2005 and granted August 27, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 19, 2025.
- 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.