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Expired Canadian patentCanada

Establishment of biological cut-off values for predicting resistance to therapy

CA 2425772 C · Owner: Hertogs, Kurt · Inventors: Harrigan, Richard P.; Larder, Brendan; Hertogs, Kurt

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Abstract From the Canadian patent

The present invention concerns methods and systems for improving the accuracy of predicting resistance of a disease to a therapy. In one embodiment of the invention, mean and standard deviation (SD) values of fold change in normalized sensitivity, relative to a laboratory wild type standard pathogen or malignant cell are calculated to demonstrate that the patient samples display inherently different degrees of variation in susceptibility to each therapy. In another embodiment, the 2xSD value for each therapy is used as the cut-off between sensitive (within normal susceptible range) and resistant (above normal susceptible range).

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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 October 22, 2001 and granted July 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 22, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 22, 2001
GrantedJuly 24, 2012
Term endedOctober 22, 2021
Patent numberCA 2425772 C
Classification (IPC)G01N33/50

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedOct 22, 2001Patent grantedJuly 24, 2012Term endedOct 22, 2021

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