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Expired European patentEurope

Use of siloxane copolymers comprising alkenyl groups as antimisting additives in cross-linkable silicone coating compositions

EP 1497357 B1 · Applicant: Wacker-Chemie GmbH

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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 February 20, 2003 and granted May 10, 2006. A European patent lasts at most 20 years from filing, so its term ended February 20, 2023.
  • 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.
FiledFebruary 20, 2003
PublishedJanuary 19, 2005
GrantedMay 10, 2006
Term endedFebruary 20, 2023
Application numberEP 03743317
Classification (CPC)C08L83/04 +2 more

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedFeb 20, 2003PublishedJan 19, 2005Patent grantedMay 10, 2006Term endedFeb 20, 2023

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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