Method and reactor for production of aluminum by carbothermic reduction of alumina

Details for Australian Patent Application No. 2004219692 (hide)

International Classifications

Event Publications

8 September 2005 PCT application entered the National Phase

PCT publication WO2004/081246 Priority application(s): WO2004/081246

22 September 2005 Amendment Made

The nature of the amendment is: Amend the name of the applicant/patentee from Alcoa Inc. and Elkem ASA to Alcoa Inc. and Elkem AS 2004220469 3M Innovative Properties Company The nature of the amendment is as shown in the statement(s) filed 26 Aug 2005

1 March 2007 Application Accepted

Published as AU-B-2004219692

28 June 2007 Standard Patent Sealed

10 November 2011 Assignment Registered

Alcoa Inc.; Elkem AS The patent has been assigned to Alcoa Inc.

6 September 2012 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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.

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