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Expired European patentEurope

High fidelity rotation method and system for seismic data

EP 1159639 B1 · Applicant: PGS Data Processing, Inc.

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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 August 23, 1999 and granted January 12, 2005. A European patent lasts at most 20 years from filing, so its term ended August 23, 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 February 23, 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.
FiledAugust 23, 1999
PublishedDecember 5, 2001
GrantedJanuary 12, 2005
Term endedAugust 23, 2019
Application numberEP 99952895
Classification (CPC)G01V1/284

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedAug 23, 1999PublishedDec 5, 2001Patent grantedJan 12, 2005Term endedAug 23, 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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