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Expired Canadian patentCanada

Nucleotide sequence for creatinine deiminase and method of use

CA 2445602 C · Owner: Goenzymes Gmbh · Inventors: Gottschalk, Ellen-Marie; Schmitz-Streit, Ruth Anne; Gottschalk, Gerhard

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 present invention relates to the discovery of novel genes encoding a polypeptide having creatinine deiminase activity and methods of use. Also disclosed is a kit using the novel sequences for determining the concentration of creatinine 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 October 20, 2003 and granted January 14, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 20, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 20, 2025.
  • 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 20, 2003
GrantedJanuary 14, 2014
Term endedOctober 20, 2023
Patent numberCA 2445602 C
Classification (IPC)C12N15/55 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedOct 20, 2003Patent grantedJan 14, 2014Term endedOct 20, 2023

Sources & verification

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