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Expired European patentEurope

Method for assembling a plurality of fuel cells stacks.

EP 1703580 B1 · Applicant: BALLARD POWER SYSTEMS INC.

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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 November 26, 2002 and granted December 10, 2008. A European patent lasts at most 20 years from filing, so its term ended November 26, 2022.
  • 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.
FiledNovember 26, 2002
PublishedSeptember 20, 2006
GrantedDecember 10, 2008
Term endedNovember 26, 2022
Application numberEP 06013735
Classification (CPC)H01M8/249 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedNov 26, 2002PublishedSep 20, 2006Patent grantedDec 10, 2008Term endedNov 26, 2022

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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