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Expired European patentEurope

Inclusion compounds of nimesulide with cyclodextrins

EP 0534995 B1 · Applicant: BOEHRINGER INGELHEIM ITALIA S.p.A.

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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 20, 1991 and granted December 28, 1994. A European patent lasts at most 20 years from filing, so its term ended May 20, 2011.
  • 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 20, 2016.
  • 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 20, 1991
PublishedApril 7, 1993
GrantedDecember 28, 1994
Term endedMay 20, 2011
Application numberEP 91909437
Classification (CPC)A61K31/63 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedMay 20, 1991PublishedApril 7, 1993Patent grantedDec 28, 1994Term endedMay 20, 2011

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

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