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European application, no grantEurope

Silicate superionic conductors and method of making same

EP 0151925 A2 · Applicant: The Minister of Energy, Mines and Resources

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Overview

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Read the whole patent

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 January 7, 1985 and never granted as a European patent. Had it been granted, its 20-year term would have ended January 7, 2005.
  • 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 July 7, 2010.
  • 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.
FiledJanuary 7, 1985
PublishedAugust 21, 1985
GrantedNever granted
Term endedJanuary 7, 2005
Application numberEP 85100093
Classification (CPC)H01M6/185 +2 more

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedJan 7, 1985PublishedAug 21, 1985Term endedJan 7, 2005

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