A cryptosystem for data security

Details for Australian Patent Application No. 2001295330 (hide)

Owner Compusoft ASA

Inventors Rueda, Luis; Oommen, John B

Agent A J Park

Pub. Number AU-B-2001295330

PCT Pub. Number WO2003/028281

Priority 2,358,048 25.09.01 CA

Filing date 15 October 2001

Wipo publication date 7 April 2003

Acceptance publication date 1 November 2007

International Classifications

G09C 1/00 (2006.01) Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system

H04L 9/00 (2006.01) Arrangements for secret or secure communication

Event Publications

26 June 2003 Application Open to Public Inspection

  Published as AU-B-2001295330

21 October 2004 Assignment before Grant

  3927296 Canada Inc. The application has been assigned to Compusoft ASA. 2002

1 November 2007 Application Accepted

  Published as AU-B-2001295330

28 February 2008 Standard Patent Sealed

1 May 2008 Application for Amendment

  The nature of the amendment is as shown in the statement(s) filed 30 Jan 2008. Address for service in Australia - A J PARK Level 11 60 Marcus Clarke Street Canberra ACT 2601 2002

11 September 2008 Amendment Made

  The nature of the amendment is as shown in the statement(s) filed 30 Jan 2008 2002

12 May 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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