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Expired European patentEurope

High-temperature fuel cell installation and process for its operation

EP 0835530 B1 · Applicant: SIEMENS AKTIENGESELLSCHAFT

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Overview

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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 June 25, 1996 and granted December 8, 1999. A European patent lasts at most 20 years from filing, so its term ended June 25, 2016.
  • 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 25, 2021.
  • 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 25, 1996
PublishedApril 15, 1998
GrantedDecember 8, 1999
Term endedJune 25, 2016
Application numberEP 96918609
Classification (CPC)H01M8/04007 +1 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedJune 25, 1996PublishedApril 15, 1998Patent grantedDec 8, 1999Term endedJune 25, 2016

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