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Extract from the Register of European Patents

EP About this file: EP0276868

EP0276868 - Demodulation circuit [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  27.01.1993
Database last updated on 03.10.2024
Most recent event   Tooltip27.01.1993Application deemed to be withdrawnpublished on 17.03.1993 [1993/11]
Applicant(s)For all designated states
NEC Corporation
7-1, Shiba 5-chome Minato-ku
Tokyo 108-8001 / JP
[N/P]
Former [1990/33]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome Minato-ku
Tokyo / JP
Former [1988/31]For all designated states
NEC CORPORATION
7-1, Shiba 5-chome Minato-ku
Tokyo 108-01 / JP
Inventor(s)01 / Inoue, Taketoshi
33-1, Shiba 5-chome
Minato-ku Tokyo / JP
[1988/31]
Representative(s)Vossius & Partner Patentanwälte Rechtsanwälte mbB
Siebertstrasse 3
81675 München / DE
[N/P]
Former [1988/31]VOSSIUS & PARTNER
Postfach 86 07 67
D-81634 München / DE
Application number, filing date88101305.629.01.1988
[1988/31]
Priority number, dateJP1987002030330.01.1987         Original published format: JP 2030387
[1988/31]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0276868
Date:03.08.1988
Language:EN
[1988/31]
Type: A3 Search report 
No.:EP0276868
Date:11.04.1990
Language:EN
[1990/15]
Search report(s)(Supplementary) European search report - dispatched on:EP19.02.1990
ClassificationIPC:H04L27/14
[1988/31]
CPC:
H04L27/1563 (EP,US)
Designated contracting statesDE,   FR,   GB,   NL,   SE [1988/31]
TitleGerman:Demodulationsschaltung[1988/31]
English:Demodulation circuit[1988/31]
French:Circuit de démodulation[1988/31]
File destroyed:12.06.1999
Examination procedure29.01.1988Examination requested  [1988/31]
07.05.1992Despatch of a communication from the examining division (Time limit: M04)
18.09.1992Application deemed to be withdrawn, date of legal effect  [1993/11]
16.10.1992Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1993/11]
Fees paidRenewal fee
26.01.1990Renewal fee patent year 03
28.12.1990Renewal fee patent year 04
30.01.1992Renewal fee patent year 05
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Documents cited:Search[X]US4447772  (DELONG RONALD V [US])
 [Y]  - FREQUENZ, vol. 27, no. 7, July 1973, pages 175-183, Schiele und Schon GmbH, Berlin, DE; W. ZSCHUNKE: "Einige neue Prinzipien für Frequenzdiskriminatoren bei Datenübertragung"
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.