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Extract from the Register of European Patents

EP About this file: EP0885402

EP0885402 - OPTICAL MULTI-CHANNEL SEPARATING FILTER WITH ELECTRICALLY ADJUSTABLE PHOTON CRYSTALS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  04.10.2002
Database last updated on 30.03.2026
Most recent event   Tooltip03.09.2004Lapse of the patent in a contracting state
New state(s): IE		published on 20.10.2004  [2004/43]
Applicant(s)For all designated states
Deutsche Telekom AG
Friedrich-Ebert-Allee 140
53113 Bonn / DE
[1998/52]
Inventor(s)01 / KOOPS, Hans, Wilfried, Peter
Ernst-Ludwig-Strasse 16
D-64372 Ober-Ramstadt / DE
[1998/52]
Representative(s)(deleted)
[2001/41]
Former [1998/52]Blumbach, Kramer & Partner GbR
Patentanwälte, Alexandrastrasse 5
65187 Wiesbaden / DE
Application number, filing date97906812.903.03.1997
[1998/52]
WO1997EP01064
Priority number, dateDE199611065605.03.1996         Original published format: DE 19610656
[1998/52]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report
No.:WO9733192
Date:12.09.1997
Language:DE
[1997/39]
Type: A1 Application with search report 
No.:EP0885402
Date:23.12.1998
Language:DE
The application published by WIPO in one of the EPO official languages on 12.09.1997 takes the place of the publication of the European patent application.
[1998/52]
Type: B1 Patent specification 
No.:EP0885402
Date:28.11.2001
Language:DE
[2001/48]
Search report(s)International search report - published on:EP12.09.1997
ClassificationIPC:G02F1/29, G02F1/19
[1998/52]
CPC:
G02F1/2955 (EP,US); B81B1/008 (EP,US); B82Y20/00 (EP,US);
G02B6/1225 (EP,US); G02F1/3132 (EP,US); B82Y15/00 (EP,US);
G02F1/0126 (EP,US); G02F1/061 (EP,US); G02F1/293 (EP,US);
G02F2202/022 (EP,US); G02F2202/32 (EP,US); Y10S977/778 (EP,US);
Y10S977/781 (EP,US); Y10S977/887 (EP,US) (-)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FI,   FR,   GB,   GR,   IE,   IT,   LI,   LU,   MC,   NL,   PT,   SE [1998/52]
TitleGerman:OPTISCHE MEHRWEGE-WEICHE AUS ELEKTRISCH EINSTELLBAREN PHOTONEN-KRISTALLEN[1998/52]
English:OPTICAL MULTI-CHANNEL SEPARATING FILTER WITH ELECTRICALLY ADJUSTABLE PHOTON CRYSTALS[1998/52]
French:FILTRE DE SEPARATION OPTIQUE A VOIES MULTIPLES AVEC CRISTAUX PHOTONIQUES ELECTRIQUEMENT AJUSTABLES[1998/52]
Entry into regional phase05.10.1998National basic fee paid 
05.10.1998Designation fee(s) paid 
05.10.1998Examination fee paid 
Examination procedure20.08.1997Request for preliminary examination filed
International Preliminary Examining Authority: EP
05.10.1998Examination requested  [1998/52]
03.04.2001Despatch of communication of intention to grant (Approval: Yes)
03.05.2001Communication of intention to grant the patent
13.08.2001Fee for grant paid
13.08.2001Fee for publishing/printing paid
Opposition(s)29.08.2002No opposition filed within time limit [ N /P ]
Fees paidRenewal fee
31.03.1999Renewal fee patent year 03
31.03.2000Renewal fee patent year 04
02.04.2001Renewal fee patent year 05
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.
Lapses during opposition  TooltipGR28.11.2001
IE28.11.2001
NL28.11.2001
DK28.02.2002
PT28.02.2002
AT03.03.2002
LU03.03.2002
MC03.03.2002
BE31.03.2002
[2004/43]
Former [2004/39]GR28.11.2001
NL28.11.2001
DK28.02.2002
PT28.02.2002
AT03.03.2002
LU03.03.2002
MC03.03.2002
BE31.03.2002
Former [2003/48]GR28.11.2001
NL28.11.2001
DK28.02.2002
PT28.02.2002
AT03.03.2002
MC03.03.2002
BE31.03.2002
Former [2003/47]GR28.11.2001
NL28.11.2001
DK28.02.2002
PT28.02.2002
AT03.03.2002
MC03.03.2002
Former [2003/46]GR28.11.2001
NL28.11.2001
DK28.02.2002
PT28.02.2002
MC03.03.2002
Former [2003/25]GR28.11.2001
NL28.11.2001
PT28.02.2002
MC03.03.2002
Former [2003/09]GR28.11.2001
NL28.11.2001
PT28.02.2002
Former [2002/49]GR28.11.2001
PT28.02.2002
Former [2002/48]PT28.02.2002
Cited inInternational search[A]   BROWN E R ET AL: "LARGE ELECTROMAGNETIC STOP BANDS IN METALLODIELECTRIC PHOTONIC CRYSTALS", APPLIED PHYSICS LETTERS, vol. 67, no. 15, 9 October 1995 (1995-10-09), pages 2138 - 2140, XP000578479 [A] 1 * the whole document *

DOI:   http://dx.doi.org/10.1063/1.114745
 [A]   LIN S -Y ET AL: "High-Q photonic bandgap resonant cavities: from mm-wave to optical regime", PHYSICS AND SIMULATION OF OPTOELECTRONIC DEVICES IV, SAN JOSE, CA, USA, 29 JAN.-2 FEB. 1996, vol. 2693, ISSN 0277-786X, PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, 1996, SPIE-INT. SOC. OPT. ENG, USA, pages 170 - 175, XP000671668 [A] 1 * the whole document *

DOI:   http://dx.doi.org/10.1117/12.238952
 [PX]   KOOPS H W P: "PHOTONIC CRYSTALS BUILT BY THREE-DIMENSIONAL ADDITIVE LITHOGRAPHY ENABLE INTEGRATED OPTICS OF HIGH DENSITY", PROCEEDINGS OF THE SPIE, vol. 2849, 5 August 1996 (1996-08-05), pages 248 - 256, XP000617864 [PX] 1-7 * abschnitt 5 *

DOI:   http://dx.doi.org/10.1117/12.255483
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.