METHOD OF CONTROLLING SOLUTION CONCENTRATION IN STRIP CLEANING LINE

Details for Australian Patent Application No. 2002245968 (hide)

Owner ALCAN INTERNATIONAL LIMITED

Inventors SIMPSON, Stephen, D.

Pub. Number AU-A-2002245968

PCT Pub. Number WO2002/079544

Priority 09/823,672 30.03.01 US

Filing date 25 March 2002

Wipo publication date 15 October 2002

International Classifications

C23G 001/12 Cleaning or pickling metallic material with solutions or molten salts

G05D 021/02 Control of chemical or physico-chemical variables, e.g. pH-value

C23G 001/22 Cleaning or pickling metallic material with solutions or molten salts

Event Publications

3 April 2003 Application Open to Public Inspection

  Published as AU-A-2002245968

19 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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.

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