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Expired Canadian patentCanada

Power train system for a vehicle and method for operating same

CA 2244028 C · Owner: Nakagawa, Yasuki · Inventors: Nakagawa, Yasuki; Nagano, Shuji; Kuramochi, Kojiro

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

In an economy running mode, auxiliary machines are operated by a motor generator in a state where the engine is stopped so as to reduce electric power consumption. The motor generator the engine and the auxiliary machines are connected through pulleys and belts. Moreover a clutch is provided for switching enabling/disabling of power transmission between the motor generator and the engine. A battery is connected to the motor generator through an inverter. When the engine is stopped the clutch is disengaged and the auxiliary machines are operated by the motor generator.

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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 September 8, 1998 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 8, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 8, 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.
FiledSeptember 8, 1998
GrantedJuly 9, 2002
Term endedSeptember 8, 2018
Patent numberCA 2244028 C
Classification (IPC)B60K25/00 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedSep 8, 1998Patent grantedJuly 9, 2002Term endedSep 8, 2018

Sources & verification

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