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Expired European patentEurope

Vascular prosthesis and method of producing it

EP 0047231 B1 · Applicant: Astra Meditec AB

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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 August 24, 1981 and granted May 9, 1984. A European patent lasts at most 20 years from filing, so its term ended August 24, 2001.
  • 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 February 24, 2007.
  • 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.
FiledAugust 24, 1981
PublishedMarch 10, 1982
GrantedMay 9, 1984
Term endedAugust 24, 2001
Application numberEP 81850140
Classification (CPC)A61F2/0077 +2 more

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedAug 24, 1981PublishedMarch 10, 1982Patent grantedMay 9, 1984Term endedAug 24, 2001

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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