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EP0153722
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EP About this file: EP0153722
| EP0153722 - Hybrid optical wavelength division multiplexer-demultiplexer [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 03.07.1987 Database last updated on 26.03.2026 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states Oki Electric Industry Company, Limited 7-12, Toranomon 1-chome Minato-ku Tokyo 105 / JP | [N/P] |
| Former [1985/36] | For all designated states Oki Electric Industry Company, Limited 7-12, Toranomon 1-chome Minato-ku Tokyo 105 / JP | Inventor(s) | 01 /
Tamura, Yasuaki OKI ELECTRIC INDUSTRY Co., Ltd. 7-12 Toranomon 1-chome Minato-ku Tokyo / JP | 02 /
Maeda, Hidenari OKI ELECTRIC INDUSTRY Co., Ltd. 7-12 Toranomon 1-chome Minato-ku Tokyo / JP | [1985/36] | Representative(s) | Betten, Jürgen Patentanwälte Lieck & Betten Maximiliansplatz 10 D-8000 München 2 / DE | [N/P] |
| Former [1985/36] | Betten, Jürgen, Dipl.-Ing. Patentanwälte Lieck & Betten Maximiliansplatz 10 D-8000 München 2 / DE | Application number, filing date | 85102054.5 | 25.02.1985 | [1985/36] | Priority number, date | JP19840038752 | 02.03.1984 Original published format: JP 3875284 | [1985/36] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0153722 | Date: | 04.09.1985 | Language: | EN | [1985/36] | Type: | A3 Search report | No.: | EP0153722 | Date: | 11.06.1986 | Language: | EN | [1986/24] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 24.04.1986 | Classification | IPC: | H04J15/00, H04B9/00, G02B6/34 | [1985/36] | CPC: |
G02B6/4246 (EP);
G02B6/28 (EP);
G02B6/29367 (EP);
G02B6/2938 (EP);
G02B6/42 (EP);
H04B10/25891 (EP)
| Designated contracting states | DE, FR, GB [1985/36] | Title | German: | Hybridischer optischer Wellenlängen-Multiplexer-Demultiplexer | [1985/36] | English: | Hybrid optical wavelength division multiplexer-demultiplexer | [1985/36] | French: | Multiplexeur-démultiplexeur hybride optique de longueurs d'onde | [1985/36] | File destroyed: | 21.06.1993 | Examination procedure | 12.12.1986 | Application deemed to be withdrawn, date of legal effect [1987/34] | 10.03.1987 | Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time [1987/34] |
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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] FR2258751 (THOMSON CSF et al.) | [X] GB2014752 (NIPPON TELEGRAPH & TELEPHONE et al.) | [X] OPTICAL COMMUNICATION CONFERENCE, September 17-19, 1979, Amsterdam, NL, pages 13.2-1 - 13.2-4; S. TAKEUCHI et al.: "Optical directional filter and its application to the bidirectional transmission system" | [A] NATIONAL TELECOMMUNICATIONS CONFERENCE, vol. 2/4, November 30 - December 4, 1980, Houston-Texas, US, pages 34.7.1 - 34.7.4; T. AMEMIYA et al.: "Optical loop network controller module for camac system" |