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Expired European patentEurope

Process for the inversion of the configuration of secondary alcohols

EP 0197375 B1 · Applicant: BAYER AG

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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.

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Why it's free to use

  • Filed March 18, 1986 and granted January 25, 1989. A European patent lasts at most 20 years from filing, so its term ended March 18, 2006.
  • 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 September 18, 2011.
  • 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.
FiledMarch 18, 1986
PublishedOctober 15, 1986
GrantedJanuary 25, 1989
Term endedMarch 18, 2006
Application numberEP 86103685
Classification (CPC)C07C67/24 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedMarch 18, 1986PublishedOct 15, 1986Patent grantedJan 25, 1989Term endedMarch 18, 2006

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

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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