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Expired European patentEurope

Self-conforming well screen

EP 1736633 B1 · Applicant: Baker Hughes Incorporated

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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 July 31, 2003 and granted December 10, 2008. A European patent lasts at most 20 years from filing, so its term ended July 31, 2023.
  • 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.
FiledJuly 31, 2003
PublishedDecember 27, 2006
GrantedDecember 10, 2008
Term endedJuly 31, 2023
Application numberEP 06018522
Classification (CPC)E21B43/086 +2 more

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedJuly 31, 2003PublishedDec 27, 2006Patent grantedDec 10, 2008Term endedJuly 31, 2023

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.