A ROLLER BIT WITH A JOURNAL PIN OFFSET FROM THE CENTRAL AXIS THEREOF

Details for Australian Patent Application No. 2003221233 (hide)

Owner KINGDREAM PUBLIC LTD. CO.

Inventors LIU, Xuezhong; ZHAO, Yan

Pub. Number AU-A-2003221233

PCT Number PCT/CN03/00220

PCT Pub. Number WO2003/091531

Priority 02 2 78185.4 28.06.02 CN; 02 1 15752.9 23.04.02 CN

Filing date 26 March 2003

Wipo publication date 10 November 2003

International Classifications

E21B 010/08 Drilling tools - Roller bits

Event Publications

7 August 2003 Complete Application Filed

  Priority application(s): 02 2 78185.4 28.06.02 CN; 02 1 15752.9 23.04.02 CN

18 December 2003 Application Open to Public Inspection

  Published as AU-A-2003221233

13 January 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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