Core drill bit with extended matrix height

Details for Australian Patent Application No. 2011201707 (hide)

Owner Longyear TM, Inc.

Inventors Drivdahl, Kristian Shayne; Rupp, Michael

Agent Phillips Ormonde Fitzpatrick

Pub. Number AU-B-2011201707

Parent 2007333850

Filing date 15 April 2011

Wipo publication date 12 May 2011

Acceptance publication date 21 July 2011

International Classifications

E21B 10/26 (2006.01) Drilling tools - Drill bits with leading portion, i.e. drill bits with a pilot cutter

Event Publications

28 April 2011 Complete Application Filed

12 May 2011 Application Open to Public Inspection

  Published as AU-B-2011201707

21 July 2011 Application Accepted

  Published as AU-B-2011201707

17 November 2011 Standard Patent Sealed

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