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Expired European patentEurope

Method of optically measuring liquid in porous material

EP 0774656 B1 · Applicant: NIHON MEDI-PHYSICS Co., Ltd.

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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 14, 1996 and granted June 7, 2006. A European patent lasts at most 20 years from filing, so its term ended November 14, 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 May 14, 2022.
  • 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 14, 1996
PublishedMay 21, 1997
GrantedJune 7, 2006
Term endedNovember 14, 2016
Application numberEP 96308235
Classification (CPC)G01N21/314

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedNov 14, 1996PublishedMay 21, 1997Patent grantedJune 7, 2006Term endedNov 14, 2016

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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