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Expired European patentEurope

Process for the preparation of racemic amino derivatives

EP 0757981 B1 · Applicant: BAYER AG

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 July 26, 1996 and granted February 16, 2000. A European patent lasts at most 20 years from filing, so its term ended July 26, 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 January 26, 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.
FiledJuly 26, 1996
PublishedFebruary 12, 1997
GrantedFebruary 16, 2000
Term endedJuly 26, 2016
Application numberEP 96112061
Classification (CPC)C07C209/62 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedJuly 26, 1996PublishedFeb 12, 1997Patent grantedFeb 16, 2000Term endedJuly 26, 2016

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