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Expired European patentEurope

Gas-proof assembly composed of a bipolar plate and a membrane-electrode unit of polymer electrolyte membrane fuel cells

EP 1095415 B1 · Applicant: Manhattan Scientifics, 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 June 30, 1999 and granted March 5, 2003. A European patent lasts at most 20 years from filing, so its term ended June 30, 2019.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by December 30, 2024.
  • 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 30, 1999
PublishedMay 2, 2001
GrantedMarch 5, 2003
Term endedJune 30, 2019
Application numberEP 99942713
Classification (CPC)C25B9/70 +2 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedJune 30, 1999PublishedMay 2, 2001Patent grantedMarch 5, 2003Term endedJune 30, 2019

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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