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Expired Canadian patentCanada

Assay method and kit therefor

CA 2422765 C · Owner: Phadia Ab · Inventors: Mendel-Hartvig, Ib; Odelstad, Lena

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The invention relates to a method of determining an analyte in a sample especially a high concentration analyte comprises the steps of: a) contacting the sample with a specified amount of a receptor which binds specifically to the analyte to form an analyte/receptor complex said specified amount of , receptor being in excess of that required to bind all analyte in the sample b) isolating on a solid phase a specified fraction of the amount of receptor contacted with the analyte, including analyte/receptor complex and unreacted receptor, c) detecting the amount of analyte/receptor complex in said isolated specified fraction, and d) from the detected amount analyte/receptor complex …

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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 8, 2001 and granted February 22, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 8, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 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 8, 2001
GrantedFebruary 22, 2011
Term endedOctober 8, 2021
Patent numberCA 2422765 C
Classification (IPC)G01N33/54 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedOct 8, 2001Patent grantedFeb 22, 2011Term endedOct 8, 2021

Sources & verification

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