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Expired Canadian patentCanada

Continuously variable transmission with improved response time

CA 2459598 C · Owner: New Carco Acquisition Llc · Inventors: Leising, Maurice B.; Mikel, Steven A.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method and arrangement for controlling a continuously variable transmission with improved response time the continuously variable transmission having a first pulley engagable with an engine and having a second pulley drivingly connected to the first pulley by a belt. The first and second pulleys each have a fixed sheave and a movable sheave a position of the movable sheaves defining a transmission ratio. The method and arrangement provides for disengaging the engine from the first pulley and increasing the speed of the engine to a target speed reducing pressure to the movable sheave of the first pulley to a low value increasing pressure to the movable sheave of the second pulley causing …

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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 March 2, 2004 and granted August 13, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 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.
FiledMarch 2, 2004
GrantedAugust 13, 2013
Term endedMarch 2, 2024
Patent numberCA 2459598 C
Classification (IPC)F16H61/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 2, 2004Patent grantedAug 13, 2013Term endedMarch 2, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.