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Expired European patentEurope

Silicon carbide based porous material and method for preparation thereof, and honeycomb structure

EP 1600432 B1 · Applicant: NGK INSULATORS, LTD.

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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.

Why it's free to use

  • Filed December 10, 2003 and granted August 1, 2012. A European patent lasts at most 20 years from filing, so its term ended December 10, 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.
FiledDecember 10, 2003
PublishedNovember 30, 2005
GrantedAugust 1, 2012
Term endedDecember 10, 2023
Application numberEP 03778780
Classification (CPC)B01J21/04 +2 more

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedDec 10, 2003PublishedNov 30, 2005Patent grantedAug 1, 2012Term endedDec 10, 2023

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