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Expired European patentEurope

A method of determining dTk isoenzyme activity and the use thereof

EP 0094923 B1 · Applicant: Källander, Clas Fredrik Runesson

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed May 10, 1983 and granted April 13, 1988. A European patent lasts at most 20 years from filing, so its term ended May 10, 2003.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by November 10, 2008.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledMay 10, 1983
PublishedNovember 23, 1983
GrantedApril 13, 1988
Term endedMay 10, 2003
Application numberEP 83850122
Classification (CPC)C12Q1/50

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedMay 10, 1983PublishedNov 23, 1983Patent grantedApril 13, 1988Term endedMay 10, 2003

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

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