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Extract from the Register of European Patents

EP About this file: EP0550421

EP0550421 - Optical shunt device [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  30.12.1999
Database last updated on 07.10.2024
Most recent event   Tooltip04.01.2003Lapse of the patent in a contracting state
New state(s): NL
published on 19.02.2003  [2003/08]
Applicant(s)For all designated states
MITSUBISHI DENKI KABUSHIKI KAISHA
2-3, Marunouchi 2-chome Chiyoda-ku
Tokyo 100 / JP
[N/P]
Former [1999/04]For all designated states
MITSUBISHI DENKI KABUSHIKI KAISHA
2-3, Marunouchi 2-chome Chiyoda-ku
Tokyo 100 / JP
Former [1997/38]For all designated states
DU PONT OPTO-ELECTRONICS KABUSHIKI KAISHA
4997, Shinyoshida-cho, Kohoku-ku
Yokohama-shi, Kanagawa 223 / JP
For:DE  FR  GB  IT 
MITSUBISHI DENKI KABUSHIKI KAISHA
2-3, Marunouchi 2-chome Chiyoda-ku
Tokyo 100 / JP
Former [1993/27]For:AT  BE  CH  LI  NL  SE 
DU PONT OPTO-ELECTRONICS KABUSHIKI KAISHA
4997, Shinyoshida-cho, Kohoku-ku
Yokohama-shi, Kanagawa 223 / JP
For:DE  FR  GB  IT 
MITSUBISHI DENKI KABUSHIKI KAISHA
2-3, Marunouchi 2-chome Chiyoda-ku
Tokyo 100 / JP
Inventor(s)01 / Tanaka, Toshiyasu, c/o Du Pont Opto Electronics
Kabushiki Kaisha, 4997 Shinyoshida-cho, Kohoku-ku
Yokohama-shi, Kanagawa 223 / JP
02 / Kobayashi, Toyohiro, c/o Mitsubishi Denki K. K.
Shizuoka Seisakusho, 18-1, Ojika 3-chome
Shizuoka-shi, Shizuoka 422 / JP
03 / Mukohara, Shouji, c/o Mitsubishi Denki K. K.
Shizuoka Seisakusho, 18-1, Ojika 3-chome
Shizuoka-shi, Shizuoka 422 / JP
[1993/27]
Representative(s)Hackett, Sean James, et al
Marks & Clerk LLP
90 Long Acre
London
WC2E 9RA / GB
[N/P]
Former [1999/04]Hackett, Sean James, et al
MARKS & CLERK, 57-60 Lincoln's Inn Fields
London WC2A 3LS / GB
Former [1993/27]Hackett, Sean James
MARKS & CLERK, 57-60 Lincoln's Inn Fields
London WC2A 3LS / GB
Application number, filing date93200764.412.07.1989
[1993/27]
Priority number, dateJP1988017416313.07.1988         Original published format: JP 17416388
JP1988017416413.07.1988         Original published format: JP 17416488
[1993/27]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0550421
Date:07.07.1993
Language:EN
[1993/27]
Type: A3 Search report 
No.:EP0550421
Date:24.08.1994
Language:EN
[1994/34]
Type: B1 Patent specification 
No.:EP0550421
Date:24.02.1999
Language:EN
[1999/08]
Search report(s)(Supplementary) European search report - dispatched on:EP04.07.1994
ClassificationIPC:H04B10/20
[1993/27]
CPC:
G02B6/2804 (EP,US); H04B10/00 (KR); G02B6/28 (EP,US);
G02B6/4246 (EP,US); H04B10/271 (EP,US); H04B10/278 (EP,US);
G02B6/3562 (EP,US) (-)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1993/27]
TitleGerman:Optische Nebenschlussvorrichtung[1993/27]
English:Optical shunt device[1993/27]
French:Dispositif optique de dérivation[1993/27]
Examination procedure31.03.1993Examination requested  [1993/27]
23.04.1997Despatch of a communication from the examining division (Time limit: M04)
15.07.1997Reply to a communication from the examining division
26.02.1998Despatch of communication of intention to grant (Approval: Yes)
13.07.1998Communication of intention to grant the patent
13.10.1998Fee for grant paid
13.10.1998Fee for publishing/printing paid
Parent application(s)   TooltipEP89908254.9  / EP0378704
Opposition(s)25.11.1999No opposition filed within time limit [2000/07]
Fees paidRenewal fee
31.03.1993Renewal fee patent year 03
31.03.1993Renewal fee patent year 04
12.07.1993Renewal fee patent year 05
07.07.1994Renewal fee patent year 06
11.07.1995Renewal fee patent year 07
11.07.1996Renewal fee patent year 08
14.07.1997Renewal fee patent year 09
08.07.1998Renewal fee patent year 10
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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.
Lapses during opposition  TooltipAT24.02.1999
BE24.02.1999
CH24.02.1999
LI24.02.1999
NL24.02.1999
SE24.02.1999
[2003/08]
Former [2002/23]AT24.02.1999
BE24.02.1999
CH24.02.1999
LI24.02.1999
SE24.02.1999
Former [2000/52]AT24.02.1999
BE24.02.1999
CH24.02.1999
LI24.02.1999
Former [2000/50]AT24.02.1999
BE24.02.1999
CH31.05.1999
LI31.05.1999
Former [2000/23]AT24.02.1999
BE24.02.1999
Former [2000/21]AT24.02.1999
Documents cited:Search[XA]JPS56111819  ;
 [XAY]DE8508153U  (SCHÖNEBECK) [X] 1 * page 4, line 22 - page 5, line 9 * * page 6, line 23 - line 27 * * figure 1 * [A] 2 [Y] 3
 [XA]  - PATENT ABSTRACTS OF JAPAN, (1981), vol. 5, no. 185, Database accession no. (P - 91), & JP56111819 A 00000000 (MITSUBISHI) [X] 1 * abstract * [A] 2
 [YA]  - KELLER ET AL, "Overlay optical fibre local area network", IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, CONFERENCE RECORD, NEW ORLEANS, US, (198512), vol. 3, pages 3921 - 3925 [Y] 3 * figure 3 * [A] 2
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.