Private Branch Exchange Back-up System, Back-up Device for Private Branch Exchange and Failure Coping Method of Network System

Details for Australian Patent Application No. 2004202553 (hide)

International Classifications

Event Publications

24 June 2004 Complete Application Filed

Priority application(s): 2003-168380 12.06.03 JP

6 January 2005 Application Open to Public Inspection

Published as AU-A-2004202553

7 September 2006 Assignment before Grant

NEC Corporation The application has been assigned to NEC Infrontia Corporation

3 September 2009 Application Accepted

Published as AU-A-2004202553

7 January 2010 Standard Patent Sealed

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