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Extract from the Register of European Patents

EP About this file: EP0991966

EP0991966 - DEPRESSED CLADDING FIBER DESIGN FOR REDUCING COUPLING TO CLADDING MODES IN FIBER GRATINGS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  27.02.2004
Database last updated on 12.07.2024
Most recent event   Tooltip27.02.2004No opposition filed within time limitpublished on 14.04.2004  [2004/16]
Applicant(s)For all designated states
MINNESOTA MINING AND MANUFACTURING COMPANY
3M Center, P.O. Box 33427
St. Paul, MN 55133-3427 / US
[N/P]
Former [2000/15]For all designated states
MINNESOTA MINING AND MANUFACTURING COMPANY
3M Center, P.O. Box 33427
St. Paul, Minnesota 55133-3427 / US
Inventor(s)01 / HAGGANS, Charles, W.
P.O. Box 33427
Saint Paul, MN 55133-3427 / US
02 / VARNER, Wayne, F.
P.O. Box 33427
Saint Paul, MN 55133-3427 / US
[2000/15]
Representative(s)dompatent von Kreisler Selting Werner - Partnerschaft von Patent- und Rechtsanwälten mbB
Deichmannhaus am Dom
Bahnhofsvorplatz 1
50667 Köln / DE
[N/P]
Former [2000/15]Hilleringmann, Jochen, Dipl.-Ing., et al
Patentanwälte von Kreisler-Selting-Werner, Bahnhofsvorplatz 1 (Deichmannhaus)
50667 Köln / DE
Application number, filing date97954016.830.10.1997
[2000/15]
WO1997US19798
Priority number, dateUS1997088488930.06.1997         Original published format: US 884889
[2000/15]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9900686
Date:07.01.1999
Language:EN
[1999/01]
Type: A1 Application with search report 
No.:EP0991966
Date:12.04.2000
Language:EN
The application published by WIPO in one of the EPO official languages on 07.01.1999 takes the place of the publication of the European patent application.
[2000/15]
Type: B1 Patent specification 
No.:EP0991966
Date:23.04.2003
Language:EN
[2003/17]
Search report(s)International search report - published on:EP07.01.1999
ClassificationIPC:G02B6/16
[2000/15]
CPC:
G02B6/03644 (EP,US); G02B6/02009 (EP,US); G02B6/02023 (EP,US);
G02B6/021 (EP,US); G02B6/02061 (EP,US); G02B6/02104 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT [2000/15]
TitleGerman:FASERUMHÜLLUNG MIT ABGESENKTEM BRECHUNGSINDEX ZUR REDUKTION DER ANKOPPLUNG AN UMHÜLLUNGSMODEN BEI FASERGITTERN[2000/15]
English:DEPRESSED CLADDING FIBER DESIGN FOR REDUCING COUPLING TO CLADDING MODES IN FIBER GRATINGS[2000/15]
French:FIBRE A GAINE ENFONCEE CONCUE POUR REDUIRE LE COUPLAGE AUX MODES DE GAINE DANS DES RESEAUX DE FIBRES[2002/46]
Former [2000/15]FIBRE A GAINE ENFONCEE CON UE POUR REDUIRE LE COUPLAGE AUX MODES DE GAINE DANS DES RESEAUX DE FIBRES
Entry into regional phase17.12.1999National basic fee paid 
17.12.1999Designation fee(s) paid 
17.12.1999Examination fee paid 
Examination procedure15.12.1998Request for preliminary examination filed
International Preliminary Examining Authority: EP
17.12.1999Examination requested  [2000/15]
14.05.2001Despatch of a communication from the examining division (Time limit: M06)
07.11.2001Reply to a communication from the examining division
01.02.2002Despatch of a communication from the examining division (Time limit: M04)
08.06.2002Reply to a communication from the examining division
22.10.2002Communication of intention to grant the patent
19.02.2003Fee for grant paid
19.02.2003Fee for publishing/printing paid
Divisional application(s)EP02012759.3  / EP1251372
Opposition(s)26.01.2004No opposition filed within time limit [2004/16]
Fees paidRenewal fee
04.10.1999Renewal fee patent year 03
04.10.2000Renewal fee patent year 04
22.10.2001Renewal fee patent year 05
21.10.2002Renewal fee patent year 06
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Cited inInternational search[A]GB2027224  (CORNING GLASS WORKS) [A] 1 * page 1, line 64 - page 2, line 10 * * figure 1 *
 [AD]  - DONG L ET AL, "OPTICAL FIBERS WITH DEPRESSED CLADDINGS FOR SUPPRESSION OF COUPLINGINTO CLADDING MODES IN FIBER BRAGG GRATINGS", IEEE PHOTONICS TECHNOLOGY LETTERS, (199701), vol. 9, no. 1, pages 64 - 66, XP000640889 [AD] 1,12,17 * see the whole document *

DOI:   http://dx.doi.org/10.1109/68.554492
 [A]  - HEWLETT S J ET AL, "CLADDING-MODE COUPLING CHARACTERISTICS OF BRAGG GRATINGS IN DEPRESSED-CLADDING FIBRE", ELECTRONICS LETTERS, (19950511), vol. 31, no. 10, pages 820 - 822, XP000518311 [A] 1 * see the whole document *

DOI:   http://dx.doi.org/10.1049/el:19950533
 [A]  - MOREY ET AL., "Mode-coupling characteristics of UV-written Bragg gratings in depressed-cladding fibre", ELECTRONICS LETTERS, (19940428), vol. 30, no. 9, pages 730 - 732, XP002062313 [A] 1 * see the whole document *

DOI:   http://dx.doi.org/10.1049/el:19940427
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.