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Expired Canadian patentCanada

Redundant prime mover system

CA 2459892 C · Owner: Poteet, Darrell · Inventors: Warren, Kelcy L.; Poteet, Darrell

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

The present invention provides a redundant prime mover system to drive a machine , having an engine coupled to the machine and a motor/generator coupled to the , machine and an electrical network connection. The engine and the motor/generator have three or four , operating modes. The first operating mode drives the machine with the engine. The second , operating mode drives the machine with the motor/generator. The third operating mode , drives the machine and the motor/generator with the engine such that the motor/generator , generates electricity for delivery to the electrical network connection. Alternatively, the , third operating mode drives the machine with both the engine and …

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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 5, 2002 and granted October 16, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 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.
FiledSeptember 5, 2002
GrantedOctober 16, 2012
Term endedSeptember 5, 2022
Patent numberCA 2459892 C
Classification (IPC)B60L1/02 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedSep 5, 2002Patent grantedOct 16, 2012Term endedSep 5, 2022

Sources & verification

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