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EP0037057
European procedure
Extract from the Register of European Patents
EP About this file: EP0037057
| EP0037057 - Low-polarisation optical waveguide coupler [Right-click to bookmark this link] | |||
| Former [1981/40] | Branching device for optical waveguides | ||
| [1988/27] | Status | No opposition filed within time limit Status updated on 10.05.1989 Database last updated on 01.01.2025 | Most recent event Tooltip | 07.03.1997 | Lapse of the patent in a contracting state | published on 23.04.1997 [1997/17] | Applicant(s) | For all designated states SIEMENS AKTIENGESELLSCHAFT Werner-von-Siemens-Str. 1 DE-80333 München / DE | [N/P] |
| Former [1981/40] | For all designated states SIEMENS AKTIENGESELLSCHAFT Wittelsbacherplatz 2 D-80333 München / DE | Inventor(s) | 01 /
Mahlein, Hans F., Dr. Queristrasse 2 D-8025 Unterhaching / DE | 02 /
Reichelt, Achim, Dipl.-Phys. Queristrasse 4 D-8025 Unterhaching / DE | 03 /
Winzer, Gerhard, Dr. Günderodestrasse 16 D-8000 München 82 / DE | [1981/40] | Application number, filing date | 81102208.6 | 24.03.1981 | [1981/40] | Priority number, date | DE19803012184 | 28.03.1980 Original published format: DE 3012184 | [1981/40] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0037057 | Date: | 07.10.1981 | Language: | DE | [1981/40] | Type: | B1 Patent specification | No.: | EP0037057 | Date: | 06.07.1988 | Language: | DE | [1988/27] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 16.07.1981 | Classification | IPC: | G02B6/24 | [1988/27] | CPC: |
G02B6/2938 (EP,US);
G02B6/29364 (EP,US);
G02B6/29368 (EP,US)
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| Former IPC [1981/40] | G02B7/26 | Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, NL, SE [1981/40] | Title | German: | Lichtwellenleiterverzweigung mit geringen Polarisationseffekten | [1988/27] | English: | Low-polarisation optical waveguide coupler | [1988/27] | French: | Branchement de guides d'ondes optiquesà faibles effets de polarisation | [1988/27] |
| Former [1981/40] | Lichtwellenleiterverzweigung | ||
| Former [1981/40] | Branching device for optical waveguides | ||
| Former [1981/40] | Branchement de guides d'ondes optiques | Examination procedure | 28.10.1981 | Examination requested [1982/01] | 05.11.1982 | Despatch of a communication from the examining division (Time limit: M04) | 07.02.1983 | Reply to a communication from the examining division | 11.05.1983 | Despatch of a communication from the examining division (Time limit: M06) | 14.11.1983 | Reply to a communication from the examining division | 27.01.1984 | Despatch of a communication from the examining division (Time limit: M03) | 02.05.1984 | Reply to a communication from the examining division | 06.02.1985 | Despatch of communication that the application is refused, reason: substantive examination {1} | 18.08.1987 | Despatch of communication of intention to grant (Approval: ) | 26.11.1987 | Communication of intention to grant the patent | 04.12.1987 | Fee for grant paid | 04.12.1987 | Fee for publishing/printing paid | Appeal following examination | 04.04.1985 | Appeal received No. T0159/85 | 07.06.1985 | Statement of grounds filed | Opposition(s) | 07.04.1989 | No opposition filed within time limit [1989/26] | Fees paid | Renewal fee | 25.03.1983 | Renewal fee patent year 03 | 24.02.1984 | Renewal fee patent year 04 | 28.03.1985 | Renewal fee patent year 05 | 26.03.1986 | Renewal fee patent year 06 | 26.03.1987 | Renewal fee patent year 07 | 25.03.1988 | 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 | [A]JP53149346 ; | [A]DE2903288 (NIPPON TELEGRAPH & TELEPHONE); | US4165496 [ ] (DI DOMENICO JR MAURO, et al); | [A]GB2020447 (PLESSEY CO LTD) | [A] - IBM Technical Disclosure Bulletin, Band 16, Nr. 1, Juni 1973 New York H.H. BLOEM et al. "Fiber-Optic Coupler" seiten 146 bis 147 | [A] - PATENTS ABSTRACTS OF JAPAN, Band 3, Nr. 21, 21 Februar 1979 seite 126E92 & JP-A-53 149 346, & JP53149346 A 00000000 |