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Extract from the Register of European Patents

EP About this file: EP0092202

EP0092202 - Digital-to-analog converting apparatus equipped with calibrating function [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  01.11.1990
Database last updated on 03.10.2024
Most recent event   Tooltip01.11.1990No opposition filed within time limitpublished on 19.12.1990 [1990/51]
Applicant(s)For all designated states
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
1-6 Uchisaiwaicho 1-chome Chiyoda-ku
Tokyo / JP
For all designated states
ADVANTEST CORPORATION
32-1, Asahi-cho 1-chome Nerima-Ku
Tokyo / JP
[N/P]
Former [1986/10]For all designated states
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
1-6 Uchisaiwaicho 1-chome Chiyoda-ku
Tokyo / JP
For all designated states
ADVANTEST CORPORATION
32-1, Asahi-cho 1-chome
Nerima-Ku Tokyo / JP
Former [1983/43]For all designated states
Nippon Telegraph and Telephone Public Corporation
1-6 Uchisaiwai-cho 1-chome Chiyoda-ku
Tokyo 100 / JP
For all designated states
ADVANTEST CORPORATION
32-1, Asahi-cho 1-chome
Nerima-Ku Tokyo / JP
Inventor(s)01 / Shibayama, Akinori
7, Toyotamanaka 4-chome
Nermia-ku Tokyo / JP
02 / Niijima, Hironobu
1049-3, Aoyagi
Tatebayashi-shi Gunma / JP
[1983/43]
Representative(s)Blumbach Weser Bergen Kramer Zwirner Hoffmann Patentanwälte
Radeckestrasse 43
81245 München / DE
[N/P]
Former [1983/43]Blumbach Weser Bergen Kramer Zwirner Hoffmann Patentanwälte
Radeckestrasse 43
D-81245 München / DE
Application number, filing date83103675.115.04.1983
[1983/43]
Priority number, dateJP1982006416616.04.1982         Original published format: JP 6416682
[1983/43]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0092202
Date:26.10.1983
Language:EN
[1983/43]
Type: A3 Search report 
No.:EP0092202
Date:07.01.1987
Language:EN
[1987/02]
Type: B1 Patent specification 
No.:EP0092202
Date:10.01.1990
Language:EN
[1990/02]
Search report(s)(Supplementary) European search report - dispatched on:EP21.11.1986
ClassificationIPC:H03M1/10
[1990/02]
CPC:
G05B19/231 (EP,US); H03M1/1071 (EP,US); H03M1/745 (EP,US)
Former IPC [1983/43]H03K13/02
Designated contracting statesDE,   FR,   NL [1983/43]
TitleGerman:Digital-Analog Umwandlungsgerät ausgerüstet mit Eichungsfunktion[1983/43]
English:Digital-to-analog converting apparatus equipped with calibrating function[1983/43]
French:Appareil de conversion numérique-analogique muni d'une fonction d'étalonnage[1983/43]
Examination procedure15.04.1983Examination requested  [1983/43]
20.06.1988Despatch of a communication from the examining division (Time limit: M06)
27.12.1988Reply to a communication from the examining division
03.05.1989Despatch of communication of intention to grant (Approval: No)
16.06.1989Despatch of communication of intention to grant (Approval: later approval)
27.06.1989Communication of intention to grant the patent
08.08.1989Fee for grant paid
08.08.1989Fee for publishing/printing paid
Opposition(s)11.10.1990No opposition filed within time limit [1990/51]
Fees paidRenewal fee
23.04.1985Renewal fee patent year 03
09.04.1986Renewal fee patent year 04
14.04.1987Renewal fee patent year 05
15.04.1988Renewal fee patent year 06
12.04.1989Renewal 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.
Documents cited:Search[A]GB2069265  (HYBRID SYSTEMS CORP);
 [A]FR2447119  (BURR BROWN RES CORP [US]);
 [A]GB2022347  (BENDIX CORP);
 [A]EP0043897  (NEC CORP [JP])
 [A]  - IEEE JOURNAL OF SOLID-STATE CIRCUITS, vol. SC-16, no. 6, December 1981, pages 616-621, IEEE, New York, US; K. MAIO et al.: "An untrimmed D/A converter with 14-bit resolution"
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.