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Extract from the Register of European Patents

EP About this file: EP0041549

EP0041549 - APPARATUS AND METHOD FOR HASHING KEY DATA [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  30.11.1988
Database last updated on 09.07.2024
Most recent event   Tooltip30.11.1988No opposition filed within time limitpublished on 18.01.1989 [1989/03]
Applicant(s)For all designated states
NCR CORPORATION
World Headquarters
Dayton, Ohio 45479 / US
[1981/50]
Inventor(s)01 / OOSTERBAAN, DuWayne Dale
1351 Felicita Lane
Escondido, CA 92025 / US
02 / WILLIAMS, Gerard John
26984 Banbury Drive
Valley Center, CA 92082 / US
[1981/50]
Representative(s)Robinson, Robert George
International Intellectual Property Department, NCR Limited, 206 Marylebone Road
London NW1 6LY / GB
[N/P]
Former [1981/50]Robinson, Robert George
International Patent Department NCR Limited 206 Marylebone Road
London NW1 6LY / GB
Application number, filing date81900124.926.11.1980
[1981/50]
WO1980US01597
Priority number, dateUS1979010131907.12.1979         Original published format: US 101319
[1981/50]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO8101758
Date:25.06.1981
[1981/15]
Type: A1 Application with search report 
No.:EP0041549
Date:16.12.1981
Language:EN
The application published by WIPO in one of the EPO official languages on 25.06.1981 takes the place of the publication of the European patent application.
[1981/50]
Type: B1 Patent specification 
No.:EP0041549
Date:03.02.1988
Language:EN
[1988/05]
Search report(s)(Supplementary) European search report - dispatched on:EP25.04.1985
ClassificationIPC:G06F15/40, G06F3/00
[1988/05]
CPC:
G06F16/9014 (EP,US)
Former IPC [1981/50]G06F3/00
Designated contracting statesCH,   DE,   FR,   GB,   LI [1981/50]
TitleGerman:GERÄT UND VERFAHREN ZUM HASHCODIEREN VON SCHLÜSSELDATEN[1981/50]
English:APPARATUS AND METHOD FOR HASHING KEY DATA[1981/50]
French:DISPOSITIF ET PROCEDE D'ADRESSAGE DE DONNEES DE CLE D'ACCES[1981/50]
Entry into regional phase17.07.1981National basic fee paid 
17.07.1981Search fee paid 
17.07.1981Designation fee(s) paid 
19.10.1981Examination fee paid 
Examination procedure19.10.1981Examination requested  [1981/51]
23.09.1986Despatch of a communication from the examining division (Time limit: M04)
19.01.1987Reply to a communication from the examining division
20.07.1987Despatch of communication of intention to grant (Approval: )
06.08.1987Communication of intention to grant the patent
20.08.1987Fee for grant paid
20.08.1987Fee for publishing/printing paid
Opposition(s)04.11.1988No opposition filed within time limit [1989/03]
Fees paidRenewal fee
04.11.1982Renewal fee patent year 03
09.11.1983Renewal fee patent year 04
09.11.1984Renewal fee patent year 05
06.11.1985Renewal fee patent year 06
20.11.1986Renewal fee patent year 07
06.11.1987Renewal fee patent year 08
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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.
Documents cited:Search[Y]FR2154072  (INT COMPUTERS LTD);
 [Y]DE2451794  (LICENTIA GMBH);
 [Y]FR2392469  (INT COMPUTERS LTD [GB], et al);
 [PD]WO8002349  (NCR CO [US])
 [Y]  - IBM TECHNICAL DISCLOSURE BULLETIN, vol. 8, no. 12, May 1966, pages 1758-1762, New York, US; B. DUNHAM et al.: "Key to address transformation system".
 [Y]  - PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON MULTIPLE-VALUED LOGIC, May 24-27, 1977, Charlotte, Proc. 7, IEEE, pages 116-118, Long Beach, US; C.L. LAM et al.: "A hashing method using multi-valued feedback shift registers".
 [A]  - ELECTRONIC TECHNOLOGY, October 1960, pages 389-394, London, GB; P.H.R. SCHOLEFIELD: "Shift registers".
International search[X]US3691472  (BOHMAN ERIK HARALD);
 [X]US3784743  (SCHROEDER H);
 [X]US4112487  (NUTTER GEOFFREY, et al);
 [X]US4115657  (MORGAN BARRIE O);
 [X]US4157454  (BECKER WOLFRAM [DE])
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.