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Expired European patentEurope

Radiation detector employing solid state scintillator material and preparation methods therefor

EP 0235387 B1 · Applicant: GENERAL ELECTRIC COMPANY

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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 December 18, 1986 and granted October 30, 1991. A European patent lasts at most 20 years from filing, so its term ended December 18, 2006.
  • 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 June 18, 2012.
  • 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.
FiledDecember 18, 1986
PublishedSeptember 9, 1987
GrantedOctober 30, 1991
Term endedDecember 18, 2006
Application numberEP 86117687
Classification (CPC)C04B35/50 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedDec 18, 1986PublishedSep 9, 1987Patent grantedOct 30, 1991Term endedDec 18, 2006

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