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Expired European patentEurope

Drilling system with means for anchoring in the borehole

EP 1005602 B1 · Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ 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 August 19, 1998 and granted July 11, 2001. A European patent lasts at most 20 years from filing, so its term ended August 19, 2018.
  • 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 19, 2024.
  • 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 19, 1998
PublishedJune 7, 2000
GrantedJuly 11, 2001
Term endedAugust 19, 2018
Application numberEP 98947472
Classification (CPC)E21B4/18 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedAug 19, 1998PublishedJune 7, 2000Patent grantedJuly 11, 2001Term endedAug 19, 2018

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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