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Extract from the Register of European Patents

EP About this file: EP0515179

EP0515179 - Optical amplifiers [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  30.06.2000
Database last updated on 14.09.2024
Most recent event   Tooltip30.06.2000No opposition filed within time limitpublished on 16.08.2000 [2000/33]
Applicant(s)For all designated states
FURUKAWA ELECTRIC CO., LTD.
6-1, Marunouchi 2-chome, Chiyoda-ku
Tokyo 100-8322 / JP
[N/P]
Former [1992/48]For all designated states
THE FURUKAWA ELECTRIC CO., LTD.
6-1, Marunouchi 1-chome, Chiyoda-ku
Tokyo 100 / JP
Inventor(s)01 / Nakamura, Kazunori
No. 24-39, Kami Ootera 3-chome
Kanagawa-ku, Yokohama-shi / JP
02 / Tei, I Kou
24A Castlebrook Lane, Nepean
Ontario, K2G 5G2 / CA
[1992/48]
Representative(s)Gibson, Stewart Harry
Urquhart-Dykes & Lord LLP Churchill House Churchill Way Cardiff
CF10 2HH / GB
[N/P]
Former [1992/48]Gibson, Stewart Harry
URQUHART-DYKES & LORD, Three Trinity Court, 21-27 Newport Road
Cardiff CF2 1AA / GB
Application number, filing date92304589.220.05.1992
[1992/48]
Priority number, dateJP1991014379220.05.1991         Original published format: JP 14379291
[1992/48]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0515179
Date:25.11.1992
Language:EN
[1992/48]
Type: A3 Search report 
No.:EP0515179
Date:05.05.1993
Language:EN
[1993/18]
Type: B1 Patent specification 
No.:EP0515179
Date:01.09.1999
Language:EN
[1999/35]
Search report(s)(Supplementary) European search report - dispatched on:EP12.03.1993
ClassificationIPC:H04B10/16, H01S3/094
[1993/18]
CPC:
H04B10/2931 (EP,US); H01S3/1001 (EP,US); H01S3/1301 (EP,US);
H04B10/2912 (EP,US); H01S3/06754 (EP,US); H01S3/10015 (EP,US)
Former IPC [1992/48]H04B10/16
Designated contracting statesDE,   ES,   FR,   GB,   IT [1992/48]
TitleGerman:Optische Verstärker[1992/48]
English:Optical amplifiers[1992/48]
French:Amplificateurs optiques[1992/48]
Examination procedure22.10.1993Examination requested  [1993/51]
30.04.1996Despatch of a communication from the examining division (Time limit: M06)
24.02.1997Reply to a communication from the examining division
25.07.1997Despatch of a communication from the examining division (Time limit: M06)
04.03.1998Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time
20.03.1998Reply to a communication from the examining division
09.09.1998Despatch of communication of intention to grant (Approval: Yes)
04.03.1999Communication of intention to grant the patent
30.04.1999Fee for grant paid
30.04.1999Fee for publishing/printing paid
Opposition(s)03.06.2000No opposition filed within time limit [2000/33]
Request for further processing for:20.03.1998Request for further processing filed
20.04.1998Full payment received (date of receipt of payment)
Request granted
06.05.1998Decision despatched
24.02.1997Request for further processing filed
24.02.1997Full payment received (date of receipt of payment)
Request deemed not to be filed
10.03.1997Decision despatched
Fees paidRenewal fee
09.05.1994Renewal fee patent year 03
12.04.1995Renewal fee patent year 04
09.05.1996Renewal fee patent year 05
12.05.1997Renewal fee patent year 06
11.05.1998Renewal fee patent year 07
12.05.1999Renewal fee patent year 08
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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[Y]JP56162554  ;
 [Y]JP60229433  ;
 [X]US3887876  (ZEIDLER GUNTER);
 [A]DE3201763  (FELTEN & GUILLEAUME GMBH [DE]);
 [A]EP0395277  (STC PLC [GB]);
 [E]EP0507367  (PIRELLI CAVI SPA [IT])
 [Y]  - PATENT ABSTRACTS OF JAPAN vol. 6, no. 47 (E-99)(925) 26 March 1982 & JP-A-56 162 554 ( NIPPON DENSHIN DENWA ), & JP56162554 A 19820326
 [Y]  - PATENT ABSTRACTS OF JAPAN vol. 10, no. 82 (E-392)2 April 1986 & JP-A-60 229 433 ( NIPPON DENKI ), & JP60229433 A 19860402
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.