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Expired European patentEurope

Rotation moulding process of polyethylene having a controlled particle size ad morphology

EP 0823918 B1 · Applicant: Borealis Technology Oy

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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 2, 1996 and granted March 21, 2001. A European patent lasts at most 20 years from filing, so its term ended May 2, 2016.
  • 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 2, 2021.
  • 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 2, 1996
PublishedFebruary 18, 1998
GrantedMarch 21, 2001
Term endedMay 2, 2016
Application numberEP 96913539
Classification (CPC)C08F210/16 +1 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedMay 2, 1996PublishedFeb 18, 1998Patent grantedMarch 21, 2001Term endedMay 2, 2016

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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