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Expired European patentEurope

Sealing joint and fuel cell plate, cells obtained and resulting fuel cells comprising a stack of such cells

EP 1792358 B1 · Applicant: L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

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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 June 17, 2005 and granted December 10, 2008. A European patent lasts at most 20 years from filing, so its term ended June 17, 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.
FiledJune 17, 2005
PublishedJune 6, 2007
GrantedDecember 10, 2008
Term endedJune 17, 2025
Application numberEP 05778192
Classification (CPC)H01M8/0271 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedJune 17, 2005PublishedJune 6, 2007Patent grantedDec 10, 2008Term endedJune 17, 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

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