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Extract from the Register of European Patents

EP About this file: EP1243963

EP1243963 - Variable optical attenuator using waveguide modification [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  04.03.2005
Database last updated on 11.09.2024
Most recent event   Tooltip30.10.2009Change - representativepublished on 02.12.2009  [2009/49]
Applicant(s)For all designated states
MetroPhotonics Inc.
1887 St. Joseph Blvd. Ottawa
Ontario K7C 7J2 / CA
[N/P]
Former [2002/39]For all designated states
MetroPhotonics Inc.
1887 St. Joseph Blvd.
Ottawa, Ontario K7C 7J2 / CA
Inventor(s)01 / He, Jian-Jun
40 College Circle
Ottawa, Ontario K1K 4R8 / CA
 [2002/39]
Representative(s)Frei, Alexandra Sarah
Frei Patentanwaltsbüro Postfach 1771
8032 Zürich / CH
[2009/49]
Former [2002/39]Frei, Alexandra Sarah
Frei Patentanwaltsbüro Postfach 768
8029 Zürich / CH
Application number, filing date02405222.722.03.2002
[2002/39]
Priority number, dateUS20010277977P23.03.2001         Original published format: US 277977 P
[2002/39]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP1243963
Date:25.09.2002
Language:EN
[2002/39]
Type: A3 Search report 
No.:EP1243963
Date:04.08.2004
[2004/32]
Search report(s)(Supplementary) European search report - dispatched on:EP17.06.2004
ClassificationIPC:G02F1/01, G02F1/025
[2002/39]
CPC:
G02F1/025 (EP,US); G02F1/011 (EP,US); G02F2203/48 (EP,US)
Designated contracting statesAT,   BE,   CH,   CY,   DE,   DK,   ES,   FI,   FR,   GB,   GR,   IE,   IT,   LI,   LU,   MC,   NL,   PT,   SE,   TR [2002/39]
Extension statesALNot yet paid
LTNot yet paid
LVNot yet paid
MKNot yet paid
RONot yet paid
SINot yet paid
TitleGerman:Variabler optischer Abschwächer unter Verwendung einer Wellenleitermodifikation[2002/39]
English:Variable optical attenuator using waveguide modification[2002/39]
French:Atténuateur optique variable utilisant une modification d'un guide d'onde[2002/39]
Examination procedure01.10.2004Application deemed to be withdrawn, date of legal effect  [2005/16]
08.11.2004Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time  [2005/16]
Fees paidPenalty fee
Additional fee for renewal fee
31.03.200403   M06   Not yet paid
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Documents cited:Search[X]US4145121  (HATA SUSUMU, et al) [X] 1-4,6-12,14-18 * column W *;
 [Y]US5970201  (ANTHONY PHILIP JOHN [US], et al) [Y] 19-24,26-28,30 * column 2, line 5 - line 21 * * column 4, line 8 - line 26 * * column 5, line 37 - line 49; compounds 1,3 *;
 [XY]GB2339028  (SAMSUNG ELECTRONICS CO LTD [KR]) [X] 1-4,6,7,10,18 * page 2, line 25 - line 32 * * page 3, line 17 - line 20 * * page 4, line 1 - line 9 * * page 6, line 7 - line 21 * * page 7, line 6 - line 15 * * page 9, line 3 - line 15 * * page 11, line 20 - line 32; compounds 2A,9 * [Y] 19-24,26-28,30;
 [X]  - VELDHUIS G J ET AL, "Integrated optic intensity modulator based on a bent channel waveguide", OPTICS COMMUNICATIONS, NORTH-HOLLAND PUBLISHING CO. AMSTERDAM, NL, (19990915), vol. 168, no. 5-6, ISSN 0030-4018, pages 481 - 491, XP004180321 [X] 1-3 * page 482; figure 1 *

DOI:   http://dx.doi.org/10.1016/S0030-4018(99)00392-2
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.