Couplings for rotary drill strings

Details for Australian Patent Application No. 2003100222 (hide)

International Classifications

Event Publications

10 April 2003 Innovation Patent Application Filed

19 June 2003 Innovation Patent Open to Public Inspection

Published as AU-B-2003100222

19 June 2003 Innovation Patent Sealed

13 November 2003 Certified Innovation Patents

Published as AU-B-2003100222

13 August 2009 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

This patent ceased under section 143A(d), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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