DIGITAL WORK PROTECTION SYSTEM, KEY MANAGEMENT APPARATUS, AND USER APPARATUS

Details for Australian Patent Application No. 2002334425 (hide)

Owner MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventors NAKANO, Toshihisa; MATSUZAKI, Natsume; TATEBAYASHI, Makoto

Pub. Number AU-A-2002334425

PCT Number PCT/JP02/10869

PCT Pub. Number WO2003/036858

Priority 2001-329863 26.10.01 JP

Filing date 21 October 2002

Wipo publication date 6 May 2003

International Classifications

H04L 009/08 Arrangements for secret or secure communication - Key distribution

Event Publications

13 February 2003 Complete Application Filed

  Priority application(s): 2001-329863 26.10.01 JP

3 July 2003 Application Open to Public Inspection

  Published as AU-A-2002334425

15 July 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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