DRILLING TOOL

Details for Australian Patent Application No. 2002331297 (hide)

Owner TRACTO-TECHNIK GMBH

Inventors BAYER, Hans-Joachim; WURM, Dieter

Pub. Number AU-A-2002331297

PCT Number PCT/EP02/08367

PCT Pub. Number WO2003/010409

Priority 10136094.0 26.07.01 DE

Filing date 26 July 2002

Wipo publication date 17 February 2003

International Classifications

E21B 010/26 Drilling tools - Drill bits with leading portion, i.e. drill bits with a pilot cutter

E21B 007/28 Special methods or apparatus for drilling

Event Publications

6 February 2003 Complete Application Filed

  Priority application(s): 10136094.0 26.07.01 DE

29 May 2003 Application Open to Public Inspection

  Published as AU-A-2002331297

8 April 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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