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Expired European patentEurope

Method of estimating elastic parameters and rock composition of underground formations using seismic data

EP 1094338 B1 · Applicant: Jason Geosystems B.V.

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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 22, 1999 and granted August 23, 2006. A European patent lasts at most 20 years from filing, so its term ended October 22, 2019.
  • 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 22, 2025.
  • 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 22, 1999
PublishedApril 25, 2001
GrantedAugust 23, 2006
Term endedOctober 22, 2019
Application numberEP 99203477
Classification (CPC)G01V1/306

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedOct 22, 1999PublishedApril 25, 2001Patent grantedAug 23, 2006Term endedOct 22, 2019

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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