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Expired Canadian patentCanada

Cancer cells from body fluids containing cells, isolation thereof and agents containing the same

CA 2338751 C · Owner: Giesing, Michael · Inventors: Giesing, Michael; Austrup, Frank

CIPO record

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Abstract From the Canadian patent

The present invention relates to a method for isolating cancer cells from body fluids containing cells. The invention also relates to sets for carrying out said method, cancer cells isolated from body fluids cell lines established , therefrom or derived cell constituents the use thereof as therapeutic agents or targets, and pharmaceutical or veterinary products containing them. The inventive method is based on the idea that body fluids containing cells are comprised of different sized and different shaped cells and groups of cells. According to the invention, body fluids containing cells or fractions of said body fluids are filtered in a sieve that retains cancer cells. The isolation …

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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 27, 1999 and granted May 24, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 27, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 27, 2021.
  • 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 27, 1999
GrantedMay 24, 2011
Term endedJuly 27, 2019
Patent numberCA 2338751 C
Classification (IPC)C12N5/09 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJuly 27, 1999Patent grantedMay 24, 2011Term endedJuly 27, 2019

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