Methods of drilling well bores using invertible oil external-water internal drilling fluids

Details for Australian Patent Application No. 2002300707 (hide)

International Classifications

Event Publications

12 June 2003 Application Open to Public Inspection

Published as AU-B-2002300707

15 June 2006 Application Accepted

Published as AU-B-2002300707

12 October 2006 Standard Patent Sealed

19 March 2009 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

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

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