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EP0227318
European procedure
Extract from the Register of European Patents
EP About this file: EP0227318
| EP0227318 - Encryption/decryption system [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 12.05.1994 Database last updated on 19.10.2024 | Most recent event Tooltip | 12.05.1994 | No opposition filed within time limit | published on 29.06.1994 [1994/26] | Applicant(s) | For all designated states NEC Corporation 7-1, Shiba 5-chome Minato-ku Tokyo 108-8001 / JP | [N/P] |
| Former [1987/27] | For all designated states NEC CORPORATION 7-1, Shiba 5-chome Minato-ku Tokyo / JP | Inventor(s) | 01 /
Kage, Kouzou NEC Corporation 33-1 Shiba 5-chome Minato-ku Tokyo / JP | [1987/27] | Representative(s) | Orchard, Oliver John JOHN ORCHARD & CO. Staple Inn Buildings North High Holborn London WC1V 7PZ / GB | [N/P] |
| Former [1987/27] | Orchard, Oliver John JOHN ORCHARD & CO. Staple Inn Buildings North High Holborn London WC1V 7PZ / GB | Application number, filing date | 86309231.8 | 26.11.1986 | [1987/27] | Priority number, date | JP19850268321 | 30.11.1985 Original published format: JP 26832185 | JP19850268322 | 30.11.1985 Original published format: JP 26832285 | [1987/27] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0227318 | Date: | 01.07.1987 | Language: | EN | [1987/27] | Type: | A3 Search report | No.: | EP0227318 | Date: | 22.02.1989 | Language: | EN | [1989/08] | Type: | B1 Patent specification | No.: | EP0227318 | Date: | 07.07.1993 | Language: | EN | [1993/27] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 04.01.1989 | Classification | IPC: | H04L9/18 | [1993/27] | CPC: |
H04L9/0662 (EP,US);
H04L9/12 (EP,US);
H04L2209/125 (EP,US);
H04L2209/34 (EP,US)
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| Former IPC [1987/27] | H04L9/02 | Designated contracting states | DE, FR, GB, NL, SE [1987/27] | Title | German: | Verschlüsselungs-/Entschlüsselungssystem | [1987/27] | English: | Encryption/decryption system | [1987/27] | French: | Système de chiffrage/déchiffrage | [1987/27] | Examination procedure | 19.12.1986 | Examination requested [1987/27] | 23.04.1991 | Despatch of a communication from the examining division (Time limit: M06) | 24.10.1991 | Reply to a communication from the examining division | 21.11.1991 | Despatch of a communication from the examining division (Time limit: M06) | 25.05.1992 | Reply to a communication from the examining division | 17.06.1992 | Despatch of a communication from the examining division (Time limit: M02) | 07.08.1992 | Reply to a communication from the examining division | 05.11.1992 | Despatch of communication of intention to grant (Approval: Yes) | 13.01.1993 | Communication of intention to grant the patent | 16.03.1993 | Fee for grant paid | 16.03.1993 | Fee for publishing/printing paid | Opposition(s) | 08.04.1994 | No opposition filed within time limit [1994/26] | Fees paid | Renewal fee | 04.11.1988 | Renewal fee patent year 03 | 24.11.1989 | Renewal fee patent year 04 | 16.10.1990 | Renewal fee patent year 05 | 21.11.1991 | Renewal fee patent year 06 | 19.11.1992 | Renewal fee patent year 07 |
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| Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court. | Lapses during opposition Tooltip | NL | 07.07.1993 | [1994/24] | Documents cited: | Search | [A]JP60020660 ; | [A]US4447672 (NAKAMURA KATSUHIRO [JP]); | [A]US4176247 (ENGLUND ROBERT M [US]); | [A]GB2151886 (BRITISH BROADCASTING CORP) | [A] - IEE PROCEEDINGS SECTION A A I, vol. 129, no. 6, part A, August 1982, pages 357-376, Old Woking, Surrey, GB; H.J. BEKER et al.: "Communications security: A survey of cryptography" | [A] - PATENT ABSTRACTS OF JAPAN, vol. 9, no. 136 (E-320)[1859], 12th June 1985; & JP-A-60 020 660 (SHARP K.K.) 01-02-1985, & JP60020660 A 00000000 | [A] - IBM TECHNICAL DISCLOSURE BULLETIN, vol. 14, no. 10, March 1972, pages 2978-2979, New York, US; R.O. SKATRUD: "Random-key generator for ciphering system" |