PULP TREATMENT AND PROCESS

Details for Australian Patent Application No. 2002250622 (hide)

Owner SAPPI LIMITED

Inventors GRAVESON, Ian; MOBIUS, Heinzhorst; WEIGHTMAN, Derek, Andrew

Pub. Number AU-A-2002250622

PCT Pub. Number WO2002/074813

Priority 2001/2162 15.03.01 ZA

Filing date 14 March 2002

Wipo publication date 3 October 2002

International Classifications

C08B 001/08 Preparation

C08B 009/00 Preparation of cellulose xanthate or viscose

D21C 009/00 After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters

Event Publications

27 March 2003 Application Open to Public Inspection

  Published as AU-A-2002250622

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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