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Expired European patentEurope

Method for creating a model for fluid flows in a fractured porous multi-layered medium

EP 1008720 B1 · Applicant: Institut Français du Pétrole

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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.

Why it's free to use

  • Filed October 22, 1999 and granted February 9, 2005. 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
PublishedJune 14, 2000
GrantedFebruary 9, 2005
Term endedOctober 22, 2019
Application numberEP 99402635
Classification (CPC)E21B49/00 +1 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedOct 22, 1999PublishedJune 14, 2000Patent grantedFeb 9, 2005Term endedOct 22, 2019

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