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Expired European patentEurope

Sensors for sulfur activity measurements

EP 0700517 B1 · Applicant: EXXON RESEARCH AND ENGINEERING COMPANY

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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 20, 1994 and granted January 5, 2000. A European patent lasts at most 20 years from filing, so its term ended May 20, 2014.
  • 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 20, 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.
FiledMay 20, 1994
PublishedMarch 13, 1996
GrantedJanuary 5, 2000
Term endedMay 20, 2014
Application numberEP 94920680
Classification (CPC)—

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedMay 20, 1994PublishedMarch 13, 1996Patent grantedJan 5, 2000Term endedMay 20, 2014

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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