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Expired Canadian patentCanada

Torque speed control authority for an engine having an all-speed governor

CA 2544406 C · Owner: International Engine Intellectual Property Company, Llc · Inventors: Rodgers, David V.

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 motor vehicle (20) has a diesel engine (22) and one or more sources (30 36) , providing data (CAN_TSC_OCM, CAN_TSC_OCM_SA11) relevant to operations of the vehicle that are external to the engine (22) but potentially influential on fueling of the engine (22). An engine control system (24) processes data according to an all-speed governing strategy (52) for controlling engine fueling (66) to develop all-speed governed fueling data (MFGOV) that sets engine fueling (66) when a data input to the engine control system (24) from the one or more sources discloses no need to influence engine fueling (66). When the data input from such one or more sources discloses a need to influence …

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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 November 15, 2004 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 15, 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.
FiledNovember 15, 2004
GrantedJanuary 8, 2013
Term endedNovember 15, 2024
Patent numberCA 2544406 C
Classification (IPC)F02D41/02 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 15, 2004Patent grantedJan 8, 2013Term endedNov 15, 2024

Sources & verification

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