Dual zone feedwell for a thickener

Details for Australian Patent Application No. 2003208184 (hide)

Owner Outotec Oyj

Inventors Taylor, David John Buchanan

Agent Shelston IP

Pub. Number AU-B-2003208184

PCT Number PCT/AU03/00285

PCT Pub. Number WO2003/078021

Priority PS 1188 19.03.02 AU

Filing date 11 March 2003

Wipo publication date 29 September 2003

Acceptance publication date 26 June 2008

International Classifications

B01D 21/01 (2006.01) Separation of suspended solid particles from liquids by sedimentation - using flocculating agents

B01D 21/02 (2006.01) Separation of suspended solid particles from liquids by sedimentation - Settling tanks

B01D 21/18 (2006.01) Separation of suspended solid particles from liquids by sedimentation

B01D 21/24 (2006.01) Separation of suspended solid particles from liquids by sedimentation - Feed or discharge mechanisms for settling tanks

C02F 1/52 (2006.01) Treatment of water, waste water, or sewage - by flocculation or precipitation of suspended impurities

Event Publications

17 July 2003 Complete Application Filed

  Priority application(s): PS 1188 19.03.02 AU

6 November 2003 Application Open to Public Inspection

  Published as AU-B-2003208184

9 December 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

2 February 2006 Section 223 Application Received

  OUTOKUMPU OYJ An application to extend the time from 19 Oct 2004 to 19 Oct 2005 in which to enter the national phase has been filed . Address for service in Australia - Shelston IP 60 Margaret Street SYDNEY NSW 2000

23 March 2006 Section 223 Application Allowed

  Outokumpu Technology Oy The time in which to enter the national phase has been extended to 19 Oct 2005. Address for service in Australia - Shelston IP Level 21 60 Margaret Street Sydney NSW 2000

30 March 2006 Assignment before Grant

  Outokumpu Oyj The application has been assigned to Outokumpu Technology Oy

23 August 2007 Change of Name(s) of Applicant(s), Section 104

  Outokumpu Technology Oy The name of the applicant has been changed to Outotec Oyj

26 June 2008 Application Accepted

  Published as AU-B-2003208184

17 July 2008 Application for Amendment

  The nature of the amendment is as shown in the statement(s) filed 30 Jun 2008. Address for service in Australia - Shelston IP Level 21 60 Margaret Street Sydney NSW 2000

16 October 2008 Opposition Lodged

  Commonwealth Scientific and Industrial Research Organisation has lodged an opposition against Outotec Oyj.

11 December 2008 Amendment Made

  The nature of the amendment is as shown in the statement(s) filed 30 Jun 2008

22 January 2009 Opposition Withdrawn - Proceed to Sealing

  The opposition by Commonwealth Scientific and Industrial Research Organisation against Outotec Oyj has been withdrawn and the application will now proceed to sealing.

29 January 2009 Standard Patent Sealed

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