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Expired European patentEurope

Process for the preparation of aminoacid derivatives

EP 1046638 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 August 31, 1999 and granted October 1, 2003. A European patent lasts at most 20 years from filing, so its term ended August 31, 2019.
  • 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 3, 2025.
  • 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.
FiledAugust 31, 1999
PublishedOctober 25, 2000
GrantedOctober 1, 2003
Term endedAugust 31, 2019
Application numberEP 99117122
Classification (CPC)C07C269/00 +1 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedAug 31, 1999PublishedOct 25, 2000Patent grantedOct 1, 2003Term endedAug 31, 2019

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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