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Expired European patentEurope

Glass matrix doped with activated luminescent nanocrystalline particles

EP 0871900 B1 · Applicant: THE GOVERNMENT OF THE UNITED STATES OF AMERICA, as represented by THE SECRETARY OF THE DEPARTMENT OF THE NAVY

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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 July 20, 1995 and granted December 5, 2001. A European patent lasts at most 20 years from filing, so its term ended July 20, 2015.
  • 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 January 20, 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.
FiledJuly 20, 1995
PublishedOctober 21, 1998
GrantedDecember 5, 2001
Term endedJuly 20, 2015
Application numberEP 95928090
Classification (CPC)G01T1/10 +2 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedJuly 20, 1995PublishedOct 21, 1998Patent grantedDec 5, 2001Term endedJuly 20, 2015

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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