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Expired Canadian patentCanada

Method and device for the detection of very small quantities of particles

CA 2539910 C · Owner: Odefey, Constantin · Inventors: Odefey, Constantin

CIPO record

Overview

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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 and a device for detecting very small quantities of particles. The inventive method is based on a detection of antigen-antibody reaction products and provides a very high detection sensitivity all the way to the femtomolar or attomolar 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 September 9, 2004 and granted June 19, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 9, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 9, 2004
GrantedJune 19, 2012
Term endedSeptember 9, 2024
Patent numberCA 2539910 C
Classification (IPC)G01N21/82 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 9, 2004Patent grantedJune 19, 2012Term endedSep 9, 2024

Sources & verification

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