Use of dispersant viscosity index improvers in exhaust gas recirculation engines

Details for Australian Patent Application No. 2004202270 (hide)

International Classifications

Event Publications

10 June 2004 Complete Application Filed

Priority application(s): 10464614 18.06.03 US

6 January 2005 Assignment before Grant

Ethyl Corporation The application has been assigned to Afton Chemical Intangibles LLC

13 January 2005 Application Open to Public Inspection

Published as AU-A-2004202270

14 September 2006 Application Accepted

Published as AU-A-2004202270

18 January 2007 Standard Patent Sealed

23 December 2010 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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