Bearing and lubrication system for earth boring bit

Details for Australian Patent Application No. 2004214512 (hide)

Owner Smith International, Inc.

Inventors Cathorne, Chris E.; Norris, Kirk A.; Richman, Lance T.; Slaughter, Robert H.

Agent Pizzeys

Pub. Number AU-B-2004214512

Priority 60/505,725 24.09.03 US

Filing date 22 September 2004

Wipo publication date 7 April 2005

Acceptance publication date 7 May 2009

International Classifications

E21B 10/24 (2006.01) Drilling tools

E21B 43/25 (2006.01) Obtaining fluids from wells - Methods for stimulating production

F16C 33/10 (2006.01) Details or accessories of bearings

F16N 1/00 (2006.01) Lubrication devices or arrangements for oil or grease

Event Publications

7 October 2004 Complete Application Filed

  Priority application(s): 60/505,725 24.09.03 US

7 April 2005 Application Open to Public Inspection

  Published as AU-B-2004214512

7 May 2009 Application Accepted

  Published as AU-B-2004214512

3 September 2009 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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