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Expired European patentEurope

Device for the contactless temperature measurement of partly transparent media over varying layer thicknesses

EP 0018642 B1 · Applicant: Schott Glaswerke

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Overview

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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 May 1, 1980 and granted September 14, 1983. A European patent lasts at most 20 years from filing, so its term ended May 1, 2000.
  • 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 November 1, 2005.
  • 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.
FiledMay 1, 1980
PublishedNovember 12, 1980
GrantedSeptember 14, 1983
Term endedMay 1, 2000
Application numberEP 80102362
Classification (CPC)G01J5/602

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedMay 1, 1980PublishedNov 12, 1980Patent grantedSep 14, 1983Term endedMay 1, 2000

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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