Drill bit

Details for Australian Patent Application No. 2002221922 (hide)

Owner Shell Internationale Research Maatschappij B.V.

Inventors Zijsling, Djurre Hans; Kriesels, Petrus Cornelis

Agent Spruson & Ferguson

Pub. Number AU-B-2002221922

PCT Pub. Number WO02/42597

Priority 00204198 27.11.00 EP

Filing date 27 November 2001

Wipo publication date 3 June 2002

Acceptance publication date 17 August 2006

International Classifications

E21B 10/38 (2006.01) Drilling tools

Event Publications

17 August 2006 Application Accepted

  Published as AU-B-2002221922

14 December 2006 Standard Patent Sealed

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