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Expired European patentEurope

High strength polyolefins

EP 0248056 B1 · Applicant: E.I. DU PONT DE NEMOURS AND COMPANY

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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 November 24, 1986 and granted September 22, 1993. A European patent lasts at most 20 years from filing, so its term ended November 24, 2006.
  • 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 May 24, 2012.
  • 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.
FiledNovember 24, 1986
PublishedDecember 9, 1987
GrantedSeptember 22, 1993
Term endedNovember 24, 2006
Application numberEP 86907198
Classification (CPC)B29C67/24 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedNov 24, 1986PublishedDec 9, 1987Patent grantedSep 22, 1993Term endedNov 24, 2006

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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