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Expired Canadian patentCanada

An electrical bus system

CA 2586997 C · Owner: Li, Gang · Inventors: Li, Gang

CIPO record

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Abstract From the Canadian patent

The present invention relates to an electric public transit system comprising , electric , driven buses with a cassette battery set and bus-mounted control system a , charge station , and a loading and unloading apparatus. When said bus needs change the cassette battery , set, said loading and unloading apparatus takes said cassette battery set from said bus and , then replace with a charged cassette battery set. Both said charge station and said loading , and unloading apparatus are equipped with their control systems respectively, which can , intercommunicate with said bus-mounted control system. In the present invention, the , cassette battery sets are charged during power …

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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 29, 2004 and granted April 1, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 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 29, 2004
GrantedApril 1, 2014
Term endedNovember 29, 2024
Patent numberCA 2586997 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 29, 2004Patent grantedApril 1, 2014Term endedNov 29, 2024

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