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Expired European patentEurope

Robust spray-dried ziegler-natta procatalyst and polymerization process employing same

EP 1778744 B1 · Applicant: Union Carbide Chemicals & Plastics Technology LLC

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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 June 24, 2005 and granted March 25, 2015. A European patent lasts at most 20 years from filing, so its term ended June 24, 2025.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledJune 24, 2005
PublishedMay 2, 2007
GrantedMarch 25, 2015
Term endedJune 24, 2025
Application numberEP 05767314
Classification (CPC)C08F10/00 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedJune 24, 2005PublishedMay 2, 2007Patent grantedMarch 25, 2015Term endedJune 24, 2025

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

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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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