METAL-FACE-SEAL ROCK BIT

Details for Australian Patent Application No. 2002243957 (hide)

Owner BAKER HUGHES INCORPORATED

Inventors PETERSON, Gregory, W.; WALK, Howard, J.

Pub. Number AU-A-2002243957

PCT Pub. Number WO2002/066781

Priority 09/784,588 15.02.01 US

Filing date 12 February 2002

Wipo publication date 4 September 2002

International Classifications

E21B 010/22 Drilling tools

E21B 010/24 Drilling tools

Event Publications

27 February 2003 Application Open to Public Inspection

  Published as AU-A-2002243957

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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