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Expired European patentEurope

Coating composition and low dielectric siliceous material produced by using same

EP 1661960 B1 · Applicant: AZ Electronic Materials USA Corp.

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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 August 4, 2004 and granted July 25, 2012. A European patent lasts at most 20 years from filing, so its term ended August 4, 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.
FiledAugust 4, 2004
PublishedMay 31, 2006
GrantedJuly 25, 2012
Term endedAugust 4, 2024
Application numberEP 04771176
Classification (CPC)C09D183/16

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedAug 4, 2004PublishedMay 31, 2006Patent grantedJuly 25, 2012Term endedAug 4, 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

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