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Expired European patentEurope

Method and means for detecting the location of a marine pipeline or a cable

EP 0010331 B1 · Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

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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 October 12, 1979 and granted May 19, 1982. A European patent lasts at most 20 years from filing, so its term ended October 12, 1999.
  • 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 April 12, 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.
FiledOctober 12, 1979
PublishedApril 30, 1980
GrantedMay 19, 1982
Term endedOctober 12, 1999
Application numberEP 79200583
Classification (CPC)G01S15/87 +2 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedOct 12, 1979PublishedApril 30, 1980Patent grantedMay 19, 1982Term endedOct 12, 1999

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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