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Expired European patentEurope

Process for producing erythro-3-amino-2-hydroxybutyric acid derivatives

EP 1063232 B1 · Applicant: DAISO CO., LTD.

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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 June 22, 2000 and granted December 14, 2005. A European patent lasts at most 20 years from filing, so its term ended June 22, 2020.
  • 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 December 22, 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.
FiledJune 22, 2000
PublishedDecember 27, 2000
GrantedDecember 14, 2005
Term endedJune 22, 2020
Application numberEP 00401792
Classification (CPC)C07C253/00 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedJune 22, 2000PublishedDec 27, 2000Patent grantedDec 14, 2005Term endedJune 22, 2020

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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