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Expired Canadian patentCanada

Geological tomography using cosmic rays

CA 2603829 C · Owner: Triumf, Operating As A Joint Venture By The Governors Of The University Of Alberta, The University Of British Columbia, Carleton University, Simon Fraser University, The University Of Toronto And The University Of Victoria · Inventors: Bryman, Douglas

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Disclosed are a system (ABC) configured for detecting cosmic ray muon (CRM) flux along a variety of trajectories (102) through a subterranean test region collecting the muon detection data and processing the data to form a threedimensional density distribution image corresponding to the test region. The system may be used for identifying concentrations of high (or low) density mineral deposits or other geological structures or formations well below the earth's (or ocean floor) surface (100). The system may be utilized for imaging geological materials and structures of higher and/or lower density in a test region having a depth of several kilometers or more.

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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 February 17, 2006 and granted December 11, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 17, 2026.
  • 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.
FiledFebruary 17, 2006
GrantedDecember 11, 2012
Term endedFebruary 17, 2026
Patent numberCA 2603829 C
Classification (IPC)G01V5/00

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 17, 2006Patent grantedDec 11, 2012Term endedFeb 17, 2026

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