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Expired Canadian patentCanada

Automatic start/stop system and method for locomotive engines

CA 2701575 C · Owner: Wolf, Daniel F. · Inventors: Wolf, Daniel F.; Hess, Gerald James, Jr.; Twichel, Jeffrey A.

CIPO record

Overview

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Abstract From the Canadian patent

An automatic start/stop system for locomotive engines which takes into account operator needs and concerns by enabling operators to locally prevent automatic shutdowns of their locomotives without disabling their AESS systems. Thus operators can maintain their lead (and/or other) units running (i.e. for peace of mind climate control, etc.) without prohibiting other locomotives in consist from automatically shutting down. The system (100) preferably includes an inhibit switch (122) located in each locomotive control cabin which when actuated by an operator, prevents that locomotive (and only that locomotive) from automatically shutting down within a predefined duration of time. Techniques …

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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 23, 2002 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 23, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 23, 2002
GrantedApril 10, 2012
Term endedMay 23, 2022
Patent numberCA 2701575 C
Classification (IPC)B61C17/00 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMay 23, 2002Patent grantedApril 10, 2012Term endedMay 23, 2022

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