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Expired European patentEurope

Displacement drilling tool and equipment using said tool

EP 1277887 B1 · Applicant: COMPAGNIE DU SOL

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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 9, 2002 and granted August 27, 2008. A European patent lasts at most 20 years from filing, so its term ended July 9, 2022.
  • 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 9, 2002
PublishedJanuary 22, 2003
GrantedAugust 27, 2008
Term endedJuly 9, 2022
Application numberEP 02291716
Classification (CPC)E21B10/44 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedJuly 9, 2002PublishedJan 22, 2003Patent grantedAug 27, 2008Term endedJuly 9, 2022

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.