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Expired Canadian patentCanada

Method and apparatus for oil sands ore mining

CA 2526336 C · Owner: Bjornson, Brad · Inventors: Strand, Craig; Bjornson, Brad

CIPO record

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Abstract From the Canadian patent

A system for recovering hydrocarbons from oil sands includes a mobile excavator a mobile crusher for receiving and crushing the excavated ore and a mobile conveyor to transport crushed ore to an ore processing unit which further crushes the ore and mixes same with water to form a slurry. The slurry is transported to a hydrocarbon separation facility. In one aspect the ore processing unit is also mobile independent of the excavator. In a further embodiment the invention provides a mineral separating facility comprising a three-stage counter-current cyclone system. In a further embodiment the mineral separating facility is also mobile The invention also provides a process for bitumen recovery …

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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 9, 2005 and granted September 17, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 9, 2025.
  • 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 9, 2005
GrantedSeptember 17, 2013
Term endedNovember 9, 2025
Patent numberCA 2526336 C
Classification (IPC)E21C41/22

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedNov 9, 2005Patent grantedSep 17, 2013Term endedNov 9, 2025

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