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Extract from the Register of European Patents

EP About this file: EP0649199

EP0649199 - High power, single-frequency tunable laser [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  09.01.1998
Database last updated on 27.07.2024
Most recent event   Tooltip09.01.1998Application deemed to be withdrawnpublished on 25.02.1998 [1998/09]
Applicant(s)For all designated states
AT&T Corp.
32 Avenue of the Americas
New York, NY 10013-2412 / US
[1995/16]
Inventor(s)01 / Zirngibl, Martin
Hunterspointe 30
Middletown, New Jersey 07734 / US
[1995/16]
Representative(s)Watts, Christopher Malcolm Kelway, et al
Lucent Technologies (UK) Ltd, 5 Mornington Road Woodford Green
Essex, IG8 0TU / GB
[N/P]
Former [1995/16]Watts, Christopher Malcolm Kelway, Dr., et al
AT&T (UK) Ltd. 5, Mornington Road
Woodford Green Essex, IG8 0TU / GB
Application number, filing date94307278.505.10.1994
[1995/16]
Priority number, dateUS1993013583613.10.1993         Original published format: US 135836
[1995/16]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0649199
Date:19.04.1995
Language:EN
[1995/16]
Search report(s)(Supplementary) European search report - dispatched on:EP09.02.1995
ClassificationIPC:H01S3/025
[1995/16]
CPC:
H01S5/026 (EP,US); H01S5/0268 (EP,KR,US); H01S5/4062 (EP,KR,US)
Designated contracting statesDE,   FR,   GB,   IT,   NL,   SE [1995/16]
TitleGerman:Monofrequenter abstimmbarer Laser mit hoher Leistung[1995/16]
English:High power, single-frequency tunable laser[1995/16]
French:Laser à fréquence unique accordable à haute puissance[1995/16]
Examination procedure05.10.1995Examination requested  [1995/48]
01.07.1996Despatch of a communication from the examining division (Time limit: M06)
24.01.1997Reply to a communication from the examining division
23.06.1997Despatch of a communication from the examining division (Time limit: M02)
04.09.1997Application deemed to be withdrawn, date of legal effect  [1998/09]
30.09.1997Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1998/09]
Request for further processing for:24.01.1997Request for further processing filed
24.01.1997Full payment received (date of receipt of payment)
Request granted
07.02.1997Decision despatched
Fees paidRenewal fee
23.10.1996Renewal fee patent year 03
Penalty fee
Additional fee for renewal fee
31.10.199704   M06   Not yet paid
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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[A]EP0370739  (STC PLC [GB]) [A] 1-6 * column 2, line 30 - line 50 * * column 6, line 28 - column 7, line 49; figure 5 *;
 [A]US5136671  (DRAGONE CORRADO [US]) [A] 1-6 * column 2, line 38 - column 5, line 25; figure 1 *;
 [PXY]EP0612125  (AT & T CORP [US]) [PXY] 1-6 * the whole document *;
 [PY]  - M.ZIRNGIBL ET AL., "DIGITALLY TUNABLE LASER BASED ON THE INTEGRATION OF A WAVEGUIDE GRATING ROUTER AND AN OPTICAL AMPLIFIER", CLEO 94, ANAHEIM,CA,US, (19940508), vol. 8, pages 186 - 187, XP000444347 [PY] 1-6 * the whole document *
 [A]  - J.B.D.SOOLE ET AL., "WAVELENGTH-SELECTABLE GRATING INTEGRATED CAVITY LASER", APPLIED PHYSICS LETTERS, NEW YORK US, (19921207), vol. 61, no. 23, doi:doi:10.1063/1.108078, pages 2750 - 2752, XP000335054 [A] 1-6 * page 2750, column L, line 17 - page 2751, column R, line 13; figure 1 *

DOI:   http://dx.doi.org/10.1063/1.108078
 [A]  - C.DRAGONE ET AL., "EFFICIENT MULTICHANNEL INTEGRATED OPTICS STAR COUPLER ON SILICON", IEEE PHOTONICS TECHNOLOGY LETTERS, NEW-YORK,US, (198908), vol. 1, no. 8, doi:doi:10.1109/68.36055, pages 241 - 243, XP000053599 [A] 1-6 * page 1, column L, line 1 - page 1, column R, line 31; figure 1 *

DOI:   http://dx.doi.org/10.1109/68.36055
 [A]  - U.KOREN ET AL., "1X16 PHOTONIC SWITCH OPERATING AT 1.55um WAVELENGTH BASED ON OPTICAL AMPLIFIERS AND PASSIVE OPTICAL SPLITTER", APPLIED PHYSICS LETTERS, NEW YORK US, (19921005), vol. 61, no. 14, doi:doi:10.1063/1.108464, pages 1613 - 1615, XP000307443 [A] 1-6 * page 1613, column L, line 1 - column R, line 15; figure 1 *

DOI:   http://dx.doi.org/10.1063/1.108464
 [A]  - C.E.ZAH ET AL., "MONOLITHIC INTEGRATION OF MULTIWAVELENGTH COMPRESSIVE-STRAIND MULTIQUANTUM WELL DISTRIBUTED FEEDBACK LASER ARRAY WITH STAR COUPLER AND OPTICAL AMPLIFIER", ELECTRONICS LETTERS, STAVENAGE GB, (19921203), vol. 28, no. 25, pages 2361 - 2362 [A] 1-6 * the whole document *
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.