Improved purification of 4, 4'(5')-di-t-butylcyclohexano-18-crown-6

Details for Australian Patent Application No. 2002350100 (hide)

International Classifications

Event Publications

20 March 2003 Complete Application Filed

Priority application(s): 10/284,968 31.10.02 US; 60/335,991 15.11.01 US

21 August 2003 Application Open to Public Inspection

Published as AU-B-2002350100

15 June 2006 Application Accepted

Published as AU-B-2002350100

12 October 2006 Standard Patent Sealed

26 May 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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