PREVENTION OF BIT BALLING BY METALLIC COASTING

Details for Australian Patent Application No. 2002329132 (hide)

Owner LYNG DIAMOND TOOLS

Inventors WEI, He

Pub. Number AU-A-2002329132

PCT Number PCT/NO02/00358

PCT Pub. Number WO2003/029604

Priority 20014799 03.10.01 NO

Filing date 3 October 2002

Wipo publication date 14 April 2003

International Classifications

E21B 017/00 Drilling rods or pipes

E21B 010/00 Drilling tools

Event Publications

30 January 2003 Complete Application Filed

  Priority application(s): 20014799 03.10.01 NO

26 June 2003 Application Open to Public Inspection

  Published as AU-A-2002329132

17 June 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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