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Expired European patentEurope

Integral drilling tool bit

EP 0776409 B1 · Applicant: Société dite DB STRATABIT SA

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 June 7, 1996 and granted July 26, 2000. A European patent lasts at most 20 years from filing, so its term ended June 7, 2016.
  • 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 December 7, 2021.
  • 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.
FiledJune 7, 1996
PublishedJune 4, 1997
GrantedJuly 26, 2000
Term endedJune 7, 2016
Application numberEP 96922074
Classification (CPC)E21B10/567 +1 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedJune 7, 1996PublishedJune 4, 1997Patent grantedJuly 26, 2000Term endedJune 7, 2016

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.