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Expired Canadian patentCanada

Scanning suspension comprising a particle with a diameter of at least 1 micrometer

CA 2491484 C · Owner: Zonnenberg, Bernard Antoni · Inventors: Nijsen, Johannes Franciscus Wilhelmus; Van Het Schip, Alfred Dirk; Zonnenberg, Bernard Antoni

CIPO record

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Abstract From the Canadian patent

The invention provides a scanning suspension comprising a particle which is capable of at least in part disturbing a magnetic field wherein said particle , comprises a diameter of at least 1 ~m and use thereof for obtaining a , scanning image. Preferably said particle comprises holmium and a composition capable of essentially maintaining its structure during irradiation. A particle of the invention is suitable for preparing a kit of parts comprising , a diagnostic and a therapeutic composition which both comprise particles of the invention with essentially the same chemical structure wherein said , therapeutic composition is more radioactive than said diagnostic composition. Said kit …

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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 July 2, 2003 and granted June 11, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 2, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 2, 2003
GrantedJune 11, 2013
Term endedJuly 2, 2023
Patent numberCA 2491484 C
Classification (IPC)A61K49/18 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJuly 2, 2003Patent grantedJune 11, 2013Term endedJuly 2, 2023

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