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Expired European patentEurope

Microseismic event detection and location by continuous map migration

EP 1789820 B1 · Applicant: Services Pétroliers Schlumberger

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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 September 9, 2005 and granted April 20, 2022. A European patent lasts at most 20 years from filing, so its term ended September 9, 2025.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledSeptember 9, 2005
PublishedMay 30, 2007
GrantedApril 20, 2022
Term endedSeptember 9, 2025
Application numberEP 05785128
Classification (CPC)G01V1/01

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedSep 9, 2005PublishedMay 30, 2007Patent grantedApril 20, 2022Term endedSep 9, 2025

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

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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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