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EP0325152
European procedure
Extract from the Register of European Patents
EP About this file: EP0325152
| EP0325152 - Wavelength division multiplexer or demultiplexer [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 08.04.1995 Database last updated on 29.06.2024 | Most recent event Tooltip | 08.04.1995 | No opposition filed within time limit | published on 31.05.1995 [1995/22] | Applicant(s) | For all designated states ANT Nachrichtentechnik GmbH Gerberstrasse 33 D-71522 Backnang / DE | [1989/30] | Inventor(s) | 01 /
Kuke, Albrecht, Dr.-Ing. Nelkenweg 2 D-7159 Auenwald / DE | [1989/30] | Application number, filing date | 89100378.2 | 11.01.1989 | [1989/30] | Priority number, date | DE19883801764 | 22.01.1988 Original published format: DE 3801764 | [1989/30] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0325152 | Date: | 26.07.1989 | Language: | DE | [1989/30] | Type: | A3 Search report | No.: | EP0325152 | Date: | 24.07.1991 | Language: | DE | [1991/30] | Type: | B1 Patent specification | No.: | EP0325152 | Date: | 08.06.1994 | Language: | DE | [1994/23] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 05.06.1991 | Classification | IPC: | G02B6/34, G02B6/28 | [1991/32] | CPC: |
G02B6/29362 (EP);
G02B6/2938 (EP);
G02B6/3652 (EP);
G02B6/3692 (EP)
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| Former IPC [1989/30] | G02B6/34 | Designated contracting states | DE, FR, GB, IT, NL [1989/30] | Title | German: | Wellenlängenmultiplexer oder -demultiplexer | [1989/30] | English: | Wavelength division multiplexer or demultiplexer | [1989/30] | French: | Multiplexeur ou démultiplexeur de longueur d'onde | [1989/30] | Examination procedure | 28.12.1990 | Examination requested [1991/10] | 10.11.1992 | Despatch of a communication from the examining division (Time limit: M04) | 04.02.1993 | Reply to a communication from the examining division | 15.09.1993 | Despatch of communication of intention to grant (Approval: Yes) | 03.12.1993 | Communication of intention to grant the patent | 09.12.1993 | Fee for grant paid | 09.12.1993 | Fee for publishing/printing paid | Opposition(s) | 09.03.1995 | No opposition filed within time limit [1995/22] | Fees paid | Renewal fee | 17.01.1991 | Renewal fee patent year 03 | 20.01.1992 | Renewal fee patent year 04 | 13.01.1993 | Renewal fee patent year 05 | 11.01.1994 | Renewal fee patent year 06 |
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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 | [Y]JP5768098 ; | [A]FR2500642 (NIPPON SHEET GLASS CO LTD [JP]); | [A]EP0171615 (NIPPON TELEGRAPH & TELEPHONE [JP]) | [Y] - PATENT ABSTRACTS OF JAPAN, Band 6, Nr. 144 (E-122)[1022], 3. August 1982; & JP-A-57 68 098 (MITSUBISHI) 26-04-1982, & JP5768098 A 00000000 | [Y] - PROCEEDINGS OF THE IEEE, Band 70, Nr. 5, Mai 1982, Seiten 420-457, IEEE, NY, US; K.E. PETERSEN: "Silicon as a mechanical material" | [A] - IEEE TRANSACTIONS ON ELECTRON DEVICES, Band ED-25, Nr. 10, Oktober 1978, Seiten 1185-1193, IEEE, NY, US; K.E. BEAN: "Anisotropic etching of silicon" |