Method of improving retention and drainage in a papermaking process using diallyl-N, N-disubstituted ammonium halide/acrylamide copolymer and a structurally modified cationic polymer

Details for Australian Patent Application No. 2002324874 (hide)

International Classifications

Event Publications

16 January 2003 Complete Application Filed

Priority application(s): 09/947,675 06.09.01 US

19 June 2003 Application Open to Public Inspection

Published as AU-B-2002324874

25 March 2004 Change of Name(s) of Applicant(s), Section 104

Ondeo Nalco Company The name of the applicant has been changed to Nalco Company 2003

13 September 2007 Application Accepted

Published as AU-B-2002324874

17 January 2008 Standard Patent Sealed

29 March 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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.

Legal

The information provided by the Site not in the nature of legal or other professional advice. The information provided by the Site is derived from third parties and may contain errors. You must make your own enquiries and seek independent advice from the relevant industry professionals before acting or relying on any information contained herein. Check the above data against the Australian Patent Office AUSPAT database.