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Expired European patentEurope

Process for the enzymatique synthesis of nucleotide-G-desoxy-D-xylo-4-hexoses

EP 0767239 B1 · Applicant: HOECHST AKTIENGESELLSCHAFT

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Overview

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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.

Why it's free to use

  • Filed September 23, 1996 and granted December 4, 2002. A European patent lasts at most 20 years from filing, so its term ended September 23, 2016.
  • 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 March 23, 2022.
  • 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.
FiledSeptember 23, 1996
PublishedApril 9, 1997
GrantedDecember 4, 2002
Term endedSeptember 23, 2016
Application numberEP 96115222
Classification (CPC)C12P19/30 +1 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedSep 23, 1996PublishedApril 9, 1997Patent grantedDec 4, 2002Term endedSep 23, 2016

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