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Extract from the Register of European Patents

EP About this file: EP0743721

EP0743721 - Optical amplifier [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.07.1999
Database last updated on 14.09.2024
Most recent event   Tooltip09.07.1999No opposition filed within time limitpublished on 25.08.1999 [1999/34]
Applicant(s)For all designated states
ALCATEL
54, rue La Boétie
75008 Paris / FR
[1999/08]
Former [1998/27]For all designated states
ALCATEL ALSTHOM COMPAGNIE GENERALE D'ELECTRICITE
54, rue La Boétie
75008 Paris / FR
Former [1996/47]For:DE 
Alcatel SEL Aktiengesellschaft
Lorenzstrasse 10
D-70435 Stuttgart / DE
For:ES  FR  GB  IT  NL  SE 
ALCATEL N.V.
Burgemeester Elsenlaan 170
NL-2288 BH Rijswijk / NL
Inventor(s)01 / Regener, Rolf, Dr.
Wernerstrasse 11
71739 Oberriexingen / DE
02 / Schmitt, Gottfried
Reutlinger Strasse 1
90441 Nürnberg / DE
[1996/47]
Representative(s)Schätzle, Albin, et al
Alcatel Lucent Intellectual Property & Standards
70430 Stuttgart / DE
[N/P]
Former [1996/47]Schätzle, Albin, Dipl.-Phys., et al
c/o Alcatel Alsthom, Intellectual Property Department, P.O. Box 30 09 29
70449 Stuttgart / DE
Application number, filing date96106595.026.04.1996
[1996/47]
Priority number, dateDE199511802117.05.1995         Original published format: DE 19518021
[1996/47]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0743721
Date:20.11.1996
Language:DE
[1996/47]
Type: B1 Patent specification 
No.:EP0743721
Date:02.09.1998
Language:DE
[1998/36]
Search report(s)(Supplementary) European search report - dispatched on:EP19.09.1996
ClassificationIPC:H01S3/06, H04B10/17
[1996/47]
CPC:
H01S3/06754 (EP,US); G02B6/42 (EP,US); H01S3/06704 (EP,US);
H01S3/06787 (EP,US)
Designated contracting statesDE,   ES,   FR,   GB,   IT,   NL,   SE [1996/47]
TitleGerman:Optischer Verstärker[1996/47]
English:Optical amplifier[1996/47]
French:Amplificateur optique[1996/47]
Examination procedure20.11.1996Examination requested  [1997/05]
27.10.1997Despatch of communication of intention to grant (Approval: Yes)
06.03.1998Communication of intention to grant the patent
15.06.1998Fee for grant paid
15.06.1998Fee for publishing/printing paid
Opposition(s)03.06.1999No opposition filed within time limit [1999/34]
Fees paidRenewal fee
16.03.1998Renewal fee patent year 03
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Documents cited:Search[A]JPH0371115  ;
 [AD]DE4027024  (STANDARD ELEKTRIK LORENZ AG [DE]) [AD] 1,5,9 * the whole document *;
 [A]EP0527604  (LITTON SYSTEMS INC [US]) [A] 1,5 * page 11, line 33 - line 58 * * page 12, line 1 - line 54 * * figure 13 *;
 [A]EP0595396  (PIRELLI CAVI SPA [IT]) [A] 1,5 * the whole document *;
 [A]EP0640853  (FUJITSU LTD [JP]) [A] 1,7,9 * column 8, line 31 - line 58 * * column 9, line 1 - line 57 * * column 11, line 43 - line 58 * * column 12, line 1 - line 10 ** figure 6 *;
 [A]  - PATENT ABSTRACTS OF JAPAN, (19910614), vol. 015, no. 234, Database accession no. (P - 1215), & JP03071115 A 19910326 (NIPPON TELEGR & TELEPH CORP) [A] 1,2,5,9 * abstract *
 [A]  - BARNARD C W ET AL, "BIDIRECTIONAL FIBER AMPLIFIERS", IEEE PHOTONICS TECHNOLOGY LETTERS, (19920801), vol. 4, no. 8, pages 911 - 913, XP000293633 [A] 1,10 * the whole document *

DOI:   http://dx.doi.org/10.1109/68.149906
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.