Extract from the Register of European Patents

EP About this file: EP0022931

EP0022931 - Voltage level conversion circuitry and purporting method [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  15.05.1984
Database last updated on 11.04.2026
Most recent event   Tooltip15.05.1984No opposition filed within time limitpublished on 18.07.1984 [1984/29]
Applicant(s)For all designated states
International Business Machines Corporation
New Orchard Road
Armonk, NY 10504 / US
[N/P]
Former [1981/04]For all designated states
International Business Machines Corporation
Old Orchard Road
Armonk, N.Y. 10504 / US
Inventor(s)01 / Gschwendtner, Jörg
Seitenstrasse 38
D-7300 Esslingen 1 / DE
02 / Löhlein, Wolfdieter
Goldregenstrasse 2
D-7033 Herrenberg 1 / DE
[1981/04]
Representative(s)Gaugel, Heinz
Schönaicher Strasse 220
D-7030 Böblingen / DE
[N/P]
Former [1983/15]Gaugel, Heinz, Dipl.-Ing.
Schönaicher Strasse 220
D-7030 Böblingen / DE
Former [1981/04]Mönig, Anton, Dipl.-Ing.
IBM Deutschland Informationssysteme GmbH, Patentwesen und Urheberrecht
D-70548 Stuttgart / DE
Application number, filing date80103391.118.06.1980
[1981/04]
Priority number, dateDE1979292938320.07.1979         Original published format: DE 2929383
[1981/04]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0022931
Date:28.01.1981
Language:DE
[1981/04]
Type: B1 Patent specification 
No.:EP0022931
Date:06.07.1983
Language:DE
[1983/27]
Search report(s)(Supplementary) European search report - dispatched on:EP06.11.1980
ClassificationIPC:H03K19/094, H03K5/00
[1981/04]
CPC:
H03K19/018507 (EP,US); H03K19/01714 (EP,US)
Designated contracting statesDE,   FR,   GB,   NL,   SE [1981/04]
TitleGerman:Schaltungsanordnung zur Spannungspegelumsetzung und zugehöriges Verfahren[1981/04]
English:Voltage level conversion circuitry and purporting method[1981/04]
French:Circuit pour convertir des niveaux de tension et procédé à cet effet[1981/04]
File destroyed:12.06.1999
Examination procedure06.07.1981Examination requested  [1981/38]
22.04.1982Despatch of a communication from the examining division (Time limit: M04)
06.07.1982Reply to a communication from the examining division
04.10.1982Despatch of communication of intention to grant (Approval: )
30.12.1982Communication of intention to grant the patent
28.01.1983Fee for grant paid
28.01.1983Fee for publishing/printing paid
Opposition(s)07.04.1984No opposition filed within time limit [1984/29]
Fees paidRenewal fee
23.06.1982Renewal fee patent year 03
21.06.1983Renewal fee patent year 04
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Lapses during opposition  TooltipNL06.07.1983
[1984/08]
Documents cited:Search  IEEE JOURNAL OF SOLID-STATE CIRCUITS, Band SC-13, Nr. 3, Juni 1978 New York E. ARAI et al. "A 64-kbit Dynamic MOS RAM" Seiten 333 bis 338 * Seiten 335 bis 336, Abschnitt IV, Fig. 5 *
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