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Expired European patentEurope

Process for the regeneration of a catalyst

EP 0757044 B1 · Applicant: Degussa 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 May 25, 1996 and granted August 19, 1998. A European patent lasts at most 20 years from filing, so its term ended May 25, 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 November 25, 2021.
  • 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 25, 1996
PublishedFebruary 5, 1997
GrantedAugust 19, 1998
Term endedMay 25, 2016
Application numberEP 96108386
Classification (CPC)C07D301/12 +1 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedMay 25, 1996PublishedFeb 5, 1997Patent grantedAug 19, 1998Term endedMay 25, 2016

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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