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

Release notes
European Patent Register Assistant
European Patent Register Resource Book
European Patent Register – pocket guide
FAQ - European Patent Register
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP1496581

EP1496581 - Optical amplifier for use in optical communications equipment [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  07.04.2006
Database last updated on 03.10.2024
Most recent event   Tooltip07.04.2006Application deemed to be withdrawnpublished on 24.05.2006  [2006/21]
Applicant(s)For all designated states
FUJITSU LIMITED
1-1, Kamikodanaka 4-chome, Nakahara-ku Kawasaki-shi
Kanagawa 211-8588 / JP
[N/P]
Former [2005/02]For all designated states
FUJITSU LIMITED
1-1, Kamikodanaka 4-chome, Nakahara-ku
Kawasaki-shi, Kanagawa 211-8588 / JP
Inventor(s)01 / Ohshima, Chihiro
Fujitsu Limited, 4-1-1, Kamikodanaka Nakahara-Ku
Kawasaki-shi, Kanagawa 211-8588 / JP
02 / Kinoshita, Susumu
Fujitsu Limited, 4-1-1, Kamikodanaka Nakahara-Ku
Kawasaki-shi, Kanagawa 211-8588 / JP
03 / Chikama, Terumi
Fujitsu Limited, 4-1-1, Kamikodanaka Nakahara-Ku
Kawasaki-shi, Kanagawa 211-8588 / JP
 [2005/02]
Representative(s)Hoffmann Eitle
Patent- und Rechtsanwälte PartmbB
Arabellastraße 30
81925 München / DE
[N/P]
Former [2005/02]HOFFMANN - EITLE
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München / DE
Application number, filing date04022788.624.03.1998
[2005/02]
Priority number, dateJP1997028590517.10.1997         Original published format: JP 28590597
[2005/02]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP1496581
Date:12.01.2005
Language:EN
[2005/02]
Type: A3 Search report 
No.:EP1496581
Date:26.01.2005
[2005/04]
Search report(s)(Supplementary) European search report - dispatched on:EP14.12.2004
ClassificationIPC:H01S3/06, H01S3/094, H01S3/131, H01S3/067
[2005/04]
CPC:
H01S3/06704 (EP,US); H01S3/094003 (EP,US); G02F1/093 (EP,US);
H01S3/06754 (EP,US); H01S3/09408 (EP,US); H01S5/40 (EP,US)
Former IPC [2005/02]H01S3/067, H01S3/094
Designated contracting statesDE,   FR,   GB [2005/02]
TitleGerman:Optischer Verstärker für optisches Nachrichtenübertragungssystem[2005/02]
English:Optical amplifier for use in optical communications equipment[2005/02]
French:Amplificateur optique pour système de communication optique[2005/02]
Examination procedure24.09.2004Examination requested  [2005/02]
04.07.2005Despatch of a communication from the examining division (Time limit: M04)
15.11.2005Application deemed to be withdrawn, date of legal effect  [2006/21]
19.12.2005Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [2006/21]
Parent application(s)   TooltipEP98105296.2  / EP0910140
Fees paidRenewal fee
18.10.2004Renewal fee patent year 03
18.10.2004Renewal fee patent year 04
18.10.2004Renewal fee patent year 05
18.10.2004Renewal fee patent year 06
18.10.2004Renewal fee patent year 07
23.03.2005Renewal fee patent year 08
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[A]JPH0888430  ;
 [A]JPH08304860  ;
 [A]JPH09200130  ;
 [A]JPH06177837  ;
 [A]US5241414  (GILES CLINTON R [US], et al) [A] 1-4 * abstract * * figures 1,2 * * column 2, line 1 - line 22 * * claims 1,7 *;
 [A]EP0722232  (NEDERLAND PTT [NL]) [A] 1-4 * page 2, line 34 - page 3, line 9 * * figure 1 *;
 [X]EP0762569  (FUJITSU LTD [JP]) [X] 4 * column 3, line 33 - line 43 * * figure 2 *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19960830), vol. 1996, no. 08, & JP08088430 A 19960402 (KYOCERA CORP) [A] 1-4 * abstract * * figure 1 *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19970331), vol. 1997, no. 03, & JP08304860 A 19961122 (KOKUSAI DENSHIN DENWA CO LTD < KDD>) [A] 1-4 * abstract * * figures 1,2,8B *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19971128), vol. 1997, no. 11, & JP09200130 A 19970731 (SUMITOMO ELECTRIC IND LTD) [A] 1-4 * abstract * * figure 2 *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19940926), vol. 018, no. 509, Database accession no. (E - 1610), & JP06177837 A 19940624 (NIPPON TELEGR & TELEPH CORP) [A] 1-4 * abstract *
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.