Graded hardfacing for drill bits

Details for Australian Patent Application No. 2006202787 (hide)

Owner Smith International, Inc

Inventors Viswanadham, Ramamurthy

Agent Collison & Co

Pub. Number AU-B-2006202787

Priority 60/695975 01.07.05 US; Unknown 29.06.06 US

Filing date 30 June 2006

Wipo publication date 18 January 2007

Acceptance publication date 17 July 2008

International Classifications

E21B 10/22 (2006.01) Drilling tools

E21B 10/52 (2006.01) Drilling tools

Event Publications

13 July 2006 Complete Application Filed

  Priority application(s): 60/695975 01.07.05 US; Unknown 29.06.06 US

18 January 2007 Application Open to Public Inspection

  Published as AU-B-2006202787

17 July 2008 Application Accepted

  Published as AU-B-2006202787

13 November 2008 Standard Patent Sealed

18 August 2011 Assignment Registered

  Smith International, Inc The patent has been assigned to Sandvik Intellectual Property AB

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