Diameter expanding groove cutting device and expanding/contracting mechanism tool

Details for Australian Patent Application No. 2006312579 (hide)

Owner Kabushiki Kaisha Miyanaga

Inventors Miyanaga, Masaaki

Agent Cullen & Co

Pub. Number AU-A-2006312579

PCT Pub. Number WO2007/055353

Priority 2006-064877 09.03.06 JP; 2005-329288 14.11.05 JP

Filing date 13 November 2006

Wipo publication date 18 May 2007

International Classifications

E21B 10/32 (2006.01) Drilling tools

B28D 1/14 (2006.01) Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere - by boring or drilling

E21B 17/046 (2006.01) Drilling rods or pipes

Event Publications

3 July 2008 PCT application entered the National Phase

  PCT publication WO2007/055353 Priority application(s): WO2007/055353

7 June 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(d). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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