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EP0718669
European procedure
Extract from the Register of European Patents
EP About this file: EP0718669
| EP0718669 - All-optical switch [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 28.05.2004 Database last updated on 19.03.2026 | Most recent event Tooltip | 28.05.2004 | No opposition filed within time limit | published on 14.07.2004 [2004/29] | Applicant(s) | For all designated states NEC Corporation 7-1, Shiba 5-chome Minato-ku Tokyo 108-8001 / JP | [N/P] |
| Former [2003/30] | For all designated states NEC CORPORATION 7-1, Shiba 5-chome, Minato-ku Tokyo / JP | ||
| Former [1996/26] | For all designated states NEC CORPORATION 7-1, Shiba 5-chome Minato-ku Tokyo / JP | Inventor(s) | 01 /
Tajima, Kazuhito, c/o NEC Corp. 7-1, Shiba 5-chome, Minato-ku Tokyo / JP | [1996/26] | Representative(s) | Glawe, Delfs, Moll Partnerschaft mbB von Patent- und Rechtsanwälten Postfach 26 01 62 80058 München / DE | [N/P] |
| Former [1996/26] | Glawe, Delfs, Moll & Partner Patentanwälte Postfach 26 01 62 80058 München / DE | Application number, filing date | 95119591.6 | 12.12.1995 | [1996/26] | Priority number, date | JP19940320801 | 22.12.1994 Original published format: JP 32080194 | [1996/26] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0718669 | Date: | 26.06.1996 | Language: | EN | [1996/26] | Type: | A3 Search report | No.: | EP0718669 | Date: | 04.12.1996 | [1996/49] | Type: | B1 Patent specification | No.: | EP0718669 | Date: | 23.07.2003 | Language: | EN | [2003/30] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 18.10.1996 | Classification | IPC: | G02F1/35, G02F1/313 | [1996/26] | CPC: |
G02F1/21 (EP,US);
G02F1/3517 (EP,US);
G02F1/2257 (EP,US);
G02F1/3136 (EP,US)
| Designated contracting states | DE, FR, GB [1996/26] | Title | German: | Rein optischer Schalter | [1996/26] | English: | All-optical switch | [1996/26] | French: | Commutateur tout optique | [1996/26] | Examination procedure | 23.10.1996 | Examination requested [1996/52] | 15.03.2002 | Despatch of a communication from the examining division (Time limit: M06) | 05.08.2002 | Reply to a communication from the examining division | 31.01.2003 | Communication of intention to grant the patent | 19.05.2003 | Fee for grant paid | 19.05.2003 | Fee for publishing/printing paid | Divisional application(s) | EP02020000.2 / EP1262818 | Opposition(s) | 26.04.2004 | No opposition filed within time limit [2004/29] | Fees paid | Renewal fee | 22.12.1997 | Renewal fee patent year 03 | 17.12.1998 | Renewal fee patent year 04 | 14.12.1999 | Renewal fee patent year 05 | 15.12.2000 | Renewal fee patent year 06 | 20.12.2001 | Renewal fee patent year 07 | 19.12.2002 | Renewal fee patent year 08 |
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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 | [X] LAGASSE M J ET AL: "Ultrafast switching with a single-fiber interferometer", OPTICS LETTERS, 15 MARCH 1989, USA, vol. 14, no. 6, ISSN 0146-9592, pages 311 - 313, XP000054172 [X] 1,4,8,12,13 * abstract * * page 312, column L, line 1 - line 7 * | [X] LAGASSE M J ET AL: "Femtosecond all-optical switching in AlGaAs waveguides using a time division interferometer", APPLIED PHYSICS LETTERS, 22 MAY 1989, USA, vol. 54, no. 21, ISSN 0003-6951, pages 2068 - 2070, XP000080568 [X] 1,2,4-6,8,12,13 * abstract * DOI: http://dx.doi.org/10.1063/1.101168 |