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Expired European patentEurope

Supported chromium polymerization catalyst and process using the same

EP 1765883 B1 · Applicant: ExxonMobil Chemical Patents Inc.

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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 17, 2005 and granted March 31, 2010. A European patent lasts at most 20 years from filing, so its term ended May 17, 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.
FiledMay 17, 2005
PublishedMarch 28, 2007
GrantedMarch 31, 2010
Term endedMay 17, 2025
Application numberEP 05749903
Classification (CPC)C08F10/00 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedMay 17, 2005PublishedMarch 28, 2007Patent grantedMarch 31, 2010Term endedMay 17, 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

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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