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Expired European patentEurope

Process for preparation of material for extrusion molding

EP 0380968 B1 · Applicant: IDEMITSU KOSAN COMPANY LIMITED

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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 January 18, 1990 and granted May 18, 1994. A European patent lasts at most 20 years from filing, so its term ended January 18, 2010.
  • 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 July 18, 2015.
  • 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.
FiledJanuary 18, 1990
PublishedAugust 8, 1990
GrantedMay 18, 1994
Term endedJanuary 18, 2010
Application numberEP 90100963
Classification (CPC)C08L25/06 +1 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedJan 18, 1990PublishedAug 8, 1990Patent grantedMay 18, 1994Term endedJan 18, 2010

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.