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European application, no grantEurope

High efficiency catalyst for polymerizing olefins prepared from organotitanium and magnesium components

EP 0114902 A1 · Applicant: THE DOW CHEMICAL 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 January 26, 1983 and never granted as a European patent. Had it been granted, its 20-year term would have ended January 26, 2003.
  • 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 26, 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.
FiledJanuary 26, 1983
PublishedAugust 8, 1984
GrantedNever granted
Term endedJanuary 26, 2003
Application numberEP 83100664
Classification (CPC)C08F10/00

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedJan 26, 1983PublishedAug 8, 1984Term endedJan 26, 2003

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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