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Expired European patentEurope

Method for producing highly reactive, low halogen polyisobutenes

EP 1701985 B1 · Applicant: BASF SE

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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 December 29, 2004 and granted August 27, 2008. A European patent lasts at most 20 years from filing, so its term ended December 29, 2024.
  • 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.
FiledDecember 29, 2004
PublishedSeptember 20, 2006
GrantedAugust 27, 2008
Term endedDecember 29, 2024
Application numberEP 04804379
Classification (CPC)C08F8/26 +1 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedDec 29, 2004PublishedSep 20, 2006Patent grantedAug 27, 2008Term endedDec 29, 2024

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.