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Expired European patentEurope

Polymerization of ethylene

EP 1177224 B1 · Applicant: E.I. DU PONT DE NEMOURS AND COMPANY

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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 April 25, 2000 and granted June 16, 2004. A European patent lasts at most 20 years from filing, so its term ended April 25, 2020.
  • 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 October 25, 2025.
  • 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.
FiledApril 25, 2000
PublishedFebruary 6, 2002
GrantedJune 16, 2004
Term endedApril 25, 2020
Application numberEP 00926338
Classification (CPC)C07F15/06 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedApril 25, 2000PublishedFeb 6, 2002Patent grantedJune 16, 2004Term endedApril 25, 2020

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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