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Expired European patentEurope

Angle and reactive torque control device for a gerotor type motor provided with a spindle and drilling bit in a bended drill string

EP 1669539 B1 · Applicant: Obschestvo s Ogranichennoi Otvetstvennostyu Firma Radius-Servis

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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 February 3, 2004 and granted July 23, 2008. A European patent lasts at most 20 years from filing, so its term ended February 3, 2024.
  • 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.
FiledFebruary 3, 2004
PublishedJune 14, 2006
GrantedJuly 23, 2008
Term endedFebruary 3, 2024
Application numberEP 04707701
Classification (CPC)E21B7/067

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedFeb 3, 2004PublishedJune 14, 2006Patent grantedJuly 23, 2008Term endedFeb 3, 2024

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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

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