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Extract from the Register of European Patents

EP About this file: EP0658996

EP0658996 - Method and apparatus to secure the information of a data packet [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  19.01.2001
Database last updated on 11.09.2024
Most recent event   Tooltip22.04.2005Lapse of the patent in a contracting state
New state(s): LU
published on 08.06.2005  [2005/23]
Applicant(s)For all designated states
Siemens Metering AG
Feldstrasse 1
6300 Zug / CH
[2000/19]
Former [2000/12]For all designated states
Landis & Gyr Technology Innovation AG
6301 Zug / CH
Former [1995/25]For all designated states
Landis & Gyr Technology Innovation AG
CH-6301 Zug / CH
Inventor(s)01 / Schaub, Thomas
Moosstrasse 16
CH-6330 Cham / CH
[1995/25]
Application number, filing date93810875.014.12.1993
[1995/25]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0658996
Date:21.06.1995
Language:DE
[1995/25]
Type: B1 Patent specification 
No.:EP0658996
Date:22.03.2000
Language:DE
[2000/12]
Search report(s)(Supplementary) European search report - dispatched on:EP20.05.1994
ClassificationIPC:H04L9/06
[1995/25]
CPC:
H04L9/0637 (EP); H04L2209/08 (EP)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IE,   IT,   LI,   LU,   MC,   NL,   PT,   SE [1995/25]
TitleGerman:Verfahren und Einrichtung zum Sichern der Information eines Datenpaketes[1995/25]
English:Method and apparatus to secure the information of a data packet[1995/25]
French:Procédé et appareil de sécurisation d'information d'un paquet de données[1995/25]
Examination procedure21.07.1995Examination requested  [1995/38]
25.05.1999Despatch of communication of intention to grant (Approval: Yes)
02.08.1999Communication of intention to grant the patent
12.11.1999Fee for grant paid
12.11.1999Fee for publishing/printing paid
Opposition(s)23.12.2000No opposition filed within time limit [2001/10]
Fees paidRenewal fee
20.12.1995Renewal fee patent year 03
17.12.1996Renewal fee patent year 04
02.01.1998Renewal fee patent year 05
04.01.1999Renewal fee patent year 06
05.01.2000Renewal fee patent year 07
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Lapses during opposition  TooltipES22.03.2000
GB22.03.2000
GR22.03.2000
PT23.06.2000
AT14.12.2000
LU14.12.2000
[2005/23]
Former [2004/07]ES22.03.2000
GB22.03.2000
GR22.03.2000
PT23.06.2000
AT14.12.2000
Former [2003/09]ES22.03.2000
GB22.03.2000
PT23.06.2000
AT14.12.2000
Former [2002/26]ES22.03.2000
GB22.03.2000
PT23.06.2000
Former [2001/50]GB22.03.2000
IE22.03.2000
PT23.06.2000
Former [2001/12]GB22.03.2000
PT23.06.2000
Former [2001/09]PT23.06.2000
Documents cited:Search[A]EP0422757  (FISCHER ADDISON M [US]) [A] 4* abstract *
 [A]  - DIFFIE & HELLMAN, "Exhaustive Cryptoanalysis of the NBS Data Encryption Standard", COMPUTER, LONG BEACH US, (197706), vol. 10, no. 6, pages 74 - 84 [A] 1,2,6 * page 80, column L, line 9 - page 81, column L, line 35; figures 1,A,B *
 [A]  - MASSEY ET AL, "A Self-Synchronizing Digital Scrambler for Cryptographic Protection of Data", 1984 INTERNATIONAL ZÜRICH SEMINAR ON DIGITAL COMMUNICATIONS, NY,USA, (198403), pages 163 - 169 [A] 1,2,6 * page 165, column L, line 18 - line 36; figures 2.2,2.3 *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.