Solvent extraction mixture comprising substituted imidazole or benzimidazole for the purification of base metals

Details for Australian Patent Application No. 2002319832 (hide)

International Classifications

Event Publications

16 January 2003 Complete Application Filed

Priority application(s): 2001/4793 13.06.01 ZA

15 May 2003 Application Open to Public Inspection

Published as AU-B-2002319832

15 January 2004 Change of Name(s) of Applicant(s), Section 104

Billiton SA Limited The name of the applicant has been changed to BHP Billiton SA Limited 2003

22 February 2007 Application Accepted

Published as AU-B-2002319832

5 July 2007 Standard Patent Sealed

6 January 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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