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Expired European patentEurope

Reflectometric method of measurement and apparatus for realizing the method

EP 0229602 B1 · Applicant: Heinonen, Aimo

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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 26, 1986 and granted January 23, 1991. A European patent lasts at most 20 years from filing, so its term ended November 26, 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 May 26, 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.
FiledNovember 26, 1986
PublishedJuly 22, 1987
GrantedJanuary 23, 1991
Term endedNovember 26, 2006
Application numberEP 86850409
Classification (CPC)G01N21/474

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedNov 26, 1986PublishedJuly 22, 1987Patent grantedJan 23, 1991Term endedNov 26, 2006

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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