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Expired European patentEurope

A venous valve cutter for the incision of valve leaflets in situ

EP 0110965 B1 · Applicant: LEATHER, Robert Paul

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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 May 23, 1983 and granted April 11, 1990. A European patent lasts at most 20 years from filing, so its term ended May 23, 2003.
  • 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 23, 2008.
  • 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 23, 1983
PublishedJune 20, 1984
GrantedApril 11, 1990
Term endedMay 23, 2003
Application numberEP 83902163
Classification (CPC)A61B17/320016 +1 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedMay 23, 1983PublishedJune 20, 1984Patent grantedApril 11, 1990Term endedMay 23, 2003

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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