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Expired Canadian patentCanada

Assay for detecting atrial and brain natriuretic peptide prohormones

CA 2530623 C · Owner: Leppaeluoto, Juhani · Inventors: Vuolteenaho, Olli; Haapalahti, Jouko; Ala-Kopsala, Minna

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Abstract From the Canadian patent

An in vitro method of determining activation or inactivation of the atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) hormonal systems, the method comprising simultaneously detecting the presence or amount of atrial and brain natriuretic peptide prohormones (proANP and proBNP) or fragments thereof in a sample.

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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 June 28, 2004 and granted September 16, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 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.
FiledJune 28, 2004
GrantedSeptember 16, 2014
Term endedJune 28, 2024
Patent numberCA 2530623 C
Classification (IPC)C07K14/58 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJune 28, 2004Patent grantedSep 16, 2014Term endedJune 28, 2024

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