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Expired European patentEurope

Toughened polyamide blends

EP 0073036 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 August 20, 1982 and granted May 6, 1987. A European patent lasts at most 20 years from filing, so its term ended August 20, 2002.
  • 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 20, 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.
FiledAugust 20, 1982
PublishedMarch 2, 1983
GrantedMay 6, 1987
Term endedAugust 20, 2002
Application numberEP 82107642
Classification (CPC)C08L77/00

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedAug 20, 1982PublishedMarch 2, 1983Patent grantedMay 6, 1987Term endedAug 20, 2002

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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