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Expired European patentEurope

Alkaline fuel cell comprising an anode consisting of aluminium and zinc, and method of producing one such anode

EP 1673835 B1 · Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives

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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 October 13, 2004 and granted July 30, 2014. A European patent lasts at most 20 years from filing, so its term ended October 13, 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.
FiledOctober 13, 2004
PublishedJune 28, 2006
GrantedJuly 30, 2014
Term endedOctober 13, 2024
Application numberEP 04791521
Classification (CPC)H01M8/08 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedOct 13, 2004PublishedJune 28, 2006Patent grantedJuly 30, 2014Term endedOct 13, 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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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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