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Expired European patentEurope

X-ray intensifying screens and method of manufacturing the same

EP 0655748 B1 · Applicant: MINNESOTA MINING AND MANUFACTURING 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.

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Why it's free to use

  • Filed November 25, 1993 and granted August 25, 1999. A European patent lasts at most 20 years from filing, so its term ended November 25, 2013.
  • 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 May 25, 2019.
  • 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 25, 1993
PublishedMay 31, 1995
GrantedAugust 25, 1999
Term endedNovember 25, 2013
Application numberEP 93118972
Classification (CPC)G21K4/00 +1 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedNov 25, 1993PublishedMay 31, 1995Patent grantedAug 25, 1999Term endedNov 25, 2013

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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