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Extract from the Register of European Patents

EP About this file: EP1241826

EP1241826 - Cryptographic key management method [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  10.06.2005
Database last updated on 05.07.2024
Most recent event   Tooltip10.06.2005Withdrawal of applicationpublished on 27.07.2005  [2005/30]
Applicant(s)For all designated states
Hitachi, Ltd.
6, Kanda Surugadai 4-chome
Chiyoda-ku
Tokyo 101-8010 / JP
[N/P]
Former [2002/38]For all designated states
Hitachi, Ltd.
6, Kanda Surugadai 4-chome
Chiyoda-ku, Tokyo 101-8010 / JP
Inventor(s)01 / Ninomiya, Toshihiko, Hitachi Ltd., Intell Prop. Gr
New Marunouchi Bldg., 5-1, Marunouchi 1-chome
Chiyoda-ku, Tokyo 100-8220 / JP
02 / Matsunaga, Kazuo, Hitachi Ltd., Intell Prop. Group
New Marunouchi Bldg., 5-1, Marunouchi 1-chome
Chiyoda-ku, Tokyo 100-8220 / JP
 [2002/38]
Representative(s)Strehl Schübel-Hopf & Partner
Maximilianstrasse 54
80538 München / DE
[2002/38]
Application number, filing date01124791.317.10.2001
[2002/38]
Priority number, dateJP2001007158114.03.2001         Original published format: JP 2001071581
[2002/38]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP1241826
Date:18.09.2002
Language:EN
[2002/38]
Type: A3 Search report 
No.:EP1241826
Date:26.02.2003
[2003/09]
Search report(s)(Supplementary) European search report - dispatched on:EP13.01.2003
ClassificationIPC:H04L9/08
[2002/38]
CPC:
H04L9/083 (EP,US); H04L9/0822 (EP,US); H04L9/321 (EP,US);
H04L9/3263 (EP,US); H04L2209/56 (EP,US)
Designated contracting statesDE,   FR,   GB [2003/46]
Former [2002/38]AT,  BE,  CH,  CY,  DE,  DK,  ES,  FI,  FR,  GB,  GR,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  SE,  TR 
TitleGerman:Verfahren zur Verwaltung von kryptographischen Schlüsseln[2002/38]
English:Cryptographic key management method[2002/38]
French:Procédé d'administration de clés cryptographiques[2002/38]
Examination procedure13.08.2003Examination requested  [2003/42]
01.06.2005Application withdrawn by applicant  [2005/30]
Fees paidRenewal fee
27.10.2003Renewal fee patent year 03
25.10.2004Renewal fee patent year 04
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Documents cited:Search[XA]WO0101629  (KONINKL KPN NV [NL], et al) [X] 1,4,7 * abstract * * page 2, line 1 - line 10 * * page 2, line 29 - page 3, line 5 * * page 4, line 18 - page 5, line 20; figures 1-3 * [A] 6;
 [X]EP0729252  (INT COMPUTERS LTD [GB]) [X] 1 * abstract * * page 4, line 35 - page 6, line 5 * * page 7, line 35 - line 55 *;
 [A]EP0851630  (PITNEY BOWES INC [US]) [A] 1 * abstract * * column 2, line 56 - column 5, line 8 *;
 [X]  - MENEZES ET AL., Handbook of Applied Cryptography, BOCA RATON (US), CRC PRESS, (1997), XP002225610 [X] 1 * page 543 - page 590 *
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.