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Expired European patentEurope

Process for preparing carbapenem compounds

EP 0679652 B1 · Applicant: SUMITOMO PHARMACEUTICALS COMPANY, LIMITED

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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 28, 1995 and granted August 19, 1998. A European patent lasts at most 20 years from filing, so its term ended March 28, 2015.
  • 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 28, 2020.
  • 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 28, 1995
PublishedNovember 2, 1995
GrantedAugust 19, 1998
Term endedMarch 28, 2015
Application numberEP 95104559
Classification (CPC)C07D477/04 +1 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedMarch 28, 1995PublishedNov 2, 1995Patent grantedAug 19, 1998Term endedMarch 28, 2015

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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