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Expired European patentEurope

Naphthalene derivatives

EP 1042277 B1 · Applicant: FUJISAWA PHARMACEUTICAL CO., LTD.

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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 December 11, 1998 and granted April 23, 2003. A European patent lasts at most 20 years from filing, so its term ended December 11, 2018.
  • 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 June 11, 2024.
  • 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.
FiledDecember 11, 1998
PublishedOctober 11, 2000
GrantedApril 23, 2003
Term endedDecember 11, 2018
Application numberEP 98959166
Classification (CPC)C07C271/28

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedDec 11, 1998PublishedOct 11, 2000Patent grantedApril 23, 2003Term endedDec 11, 2018

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.