EARTH BORING BIT HAVING AIR TUBE WITH REMOVABLE CAP

Details for Australian Patent Application No. 2002350259 (hide)

Owner BAKER HUGHES INCORPORATED

Inventors PETERSON, Gregory, W.; DAVIS, Samuel, B.

Pub. Number AU-A-2002350259

PCT Number PCT/US02/37782

PCT Pub. Number WO2003/058024

Priority 10/028,074 21.12.01 US

Filing date 25 November 2002

Wipo publication date 24 July 2003

International Classifications

E21B 010/18 Drilling tools

E21B 010/24 Drilling tools

Event Publications

20 March 2003 Complete Application Filed

  Priority application(s): 10/028,074 21.12.01 US

4 September 2003 Application Open to Public Inspection

  Published as AU-A-2002350259

9 September 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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