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Expired European patentEurope

Method for producing granules from thermoplastic siloxane polymers

EP 1833883 B1 · Applicant: Wacker Chemie AG

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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 November 24, 2005 and granted March 26, 2008. A European patent lasts at most 20 years from filing, so its term ended November 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.
FiledNovember 24, 2005
PublishedSeptember 19, 2007
GrantedMarch 26, 2008
Term endedNovember 24, 2025
Application numberEP 05815676
Classification (CPC)C08G18/0895 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedNov 24, 2005PublishedSep 19, 2007Patent grantedMarch 26, 2008Term endedNov 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

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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