blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP0403047

EP0403047 - A frequency divider circuit [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  12.07.1996
Database last updated on 14.09.2024
Most recent event   Tooltip12.07.1996No opposition filed within time limitpublished on 28.08.1996 [1996/35]
Applicant(s)For all designated states
MITSUBISHI DENKI KABUSHIKI KAISHA
2-3, Marunouchi 2-chome
Chiyoda-ku
Tokyo / JP
[N/P]
Former [1990/51]For all designated states
MITSUBISHI DENKI KABUSHIKI KAISHA
2-3, Marunouchi 2-chome Chiyoda-ku
Tokyo / JP
Inventor(s)01 / Maemura, Kousei, c/o Mitsubishi Denki K.K.
Optelectronic and Microwave Device, R & D Lab. 1
Mizuhara 4-chome, Itami-shi, Hyogo-ken / JP
02 / Ishida, Hiroichi, c/o Mitsubishi Denki K.K.
Tsushinki Seisakusho, 1-1, Tsukaguchi Hon. 8-chome
Amagasaki-shi, Hyogo-ken / JP
[1990/51]
Representative(s)Beresford, Keith Denis Lewis, et al
Beresford Crump LLP
16 High Holborn
London WC1V 6BX / GB
[N/P]
Former [1990/51]Beresford, Keith Denis Lewis, et al
BERESFORD & Co. 2-5 Warwick Court High Holborn
London WC1R 5DJ / GB
Application number, filing date90302163.228.02.1990
[1990/51]
Priority number, dateJP1989014892812.06.1989         Original published format: JP 14892889
[1990/51]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0403047
Date:19.12.1990
Language:EN
[1990/51]
Type: A3 Search report 
No.:EP0403047
Date:17.04.1991
Language:EN
[1991/16]
Type: B1 Patent specification 
No.:EP0403047
Date:06.09.1995
Language:EN
[1995/36]
Search report(s)(Supplementary) European search report - dispatched on:EP01.03.1991
ClassificationIPC:H03K23/58, H03K21/38
[1991/22]
CPC:
H03K21/38 (EP,US); H03K23/58 (EP,US)
Former IPC [1990/51]H03K23/58
Designated contracting statesDE,   FR,   GB [1990/51]
TitleGerman:Frequenzteiler-Schaltung[1990/51]
English:A frequency divider circuit[1990/51]
French:Circuit diviseur de fréquence[1990/51]
MiscellaneousEPB 1995/36: Teilanmeldung 91118873.8 eingereicht am 28/02/90
EPB 1995/36: Divisional application 91118873.8 filed on 28/02/90
EPB 1995/36: Demande divisionnaire 91118873.8 déposée le 28/02/90
Examination procedure28.12.1990Examination requested  [1991/10]
08.07.1993Despatch of a communication from the examining division (Time limit: M04)
20.10.1993Reply to a communication from the examining division
10.11.1993Despatch of a communication from the examining division (Time limit: M04)
25.02.1994Reply to a communication from the examining division
14.11.1994Despatch of communication of intention to grant (Approval: Yes)
01.02.1995Communication of intention to grant the patent
07.04.1995Fee for grant paid
07.04.1995Fee for publishing/printing paid
Divisional application(s)EP91118873.8  / EP0471390
Opposition(s)08.06.1996No opposition filed within time limit [1996/35]
Fees paidRenewal fee
02.01.1992Renewal fee patent year 03
21.12.1992Renewal fee patent year 04
23.02.1994Renewal fee patent year 05
17.02.1995Renewal fee patent year 06
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court
See the Register of the Unified Patent Court for opt-out data
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[X]JP59156028  ;
 [A]JP5679534  ;
 [X]US4181862  (DINGWALL ANDREW G F [US]);
 [A]US4150337  (SHELLER DANIEL R)
 [X]  - PATENT ABSTRACTS OF JAPAN, vol. 9, no. 8 (E-289), 12th January 1985; & JP-A-59 156 028 (IWASAKI TSUSCHINKI K.K.) 05-09-1984, & JP59156028 A 00000000
 [A]  - PATENT ABSTRACTS OF JAPAN, vol. 5, no. 145 (E-74), 12th September 1981; & JP-A-56 79 534 (FUJITSU K.K.) 30-06-1981, & JP5679534 A 00000000
Examination   - Introduction to SYSTEM DESIGN USING ICs, B.S.Sonde, Wiley eastern Ltd., 1980, p127
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.