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EP0038023
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Extract from the Register of European Patents
EP About this file: EP0038023
| EP0038023 - Fiber optic directional coupler [Right-click to bookmark this link] | Status | The application has been withdrawn Status updated on 19.07.1984 Database last updated on 31.08.2024 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states The Board of Trustees of the Leland Stanford Junior University Office of Technology and Licensing 105 Encina Hall Stanford University Stanford California 94305 / US | [N/P] |
| Former [1983/22] | For all designated states THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY Office of Technology and Licensing, 105 Encina Hall, Stanford University Stanford, California 94305 / US | ||
| Former [1981/42] | For all designated states The Board of Trustees of the Leland Stanford Junior University Encina Trailer Stanford, California 94305 / US | Inventor(s) | 01 /
Shaw, Herbert John 719 Alvarado Drive Stanford California 94305 / US | 02 /
Bergh, Ralph Alan 809 Northampton Drive Palo Alto California 94303 / US | [1981/42] | Representative(s) | Rushton, Ronald, et al SOMMERVILLE & RUSHTON 11 Holywell Hill St. Albans Hertfordshire AL1 3EZ / GB | [N/P] |
| Former [1983/04] | Rushton, Ronald, et al SOMMERVILLE & RUSHTON 11 Holywell Hill St. Albans Hertfordshire AL1 3EZ / GB | ||
| Former [1982/52] | (deleted) | ||
| Former [1981/42] | Ebbinghaus, Dieter, Dipl.-Ing., et al Patentanwälte v. Füner, Ebbinghaus, Finck Mariahilfplatz 2 & 3 D-81541 München / DE | Application number, filing date | 81102667.3 | 08.04.1981 | [1981/42] | Priority number, date | US19800139511 | 11.04.1980 Original published format: US 139511 | [1981/42] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0038023 | Date: | 21.10.1981 | Language: | EN | [1981/42] | Type: | A3 Search report | No.: | EP0038023 | Date: | 07.04.1982 | Language: | EN | [1982/14] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 02.02.1982 | Classification | IPC: | G02B7/26 | [1981/42] | CPC: |
G02B6/3536 (EP,US);
G02B6/28 (KR);
G02B6/2826 (EP,US);
G02B6/283 (EP,US);
G02B6/35 (KR);
G02B6/3594 (EP,US);
Y10S359/90 (EP,US)
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| Designated contracting states | BE, CH, FR, GB, LI, NL, SE [1981/42] | Title | German: | Faseroptische Richtungskupplung | [1981/42] | English: | Fiber optic directional coupler | [1981/42] | French: | Couplage directionnel à fibre optique | [1981/42] | File destroyed: | 14.07.1990 | Examination procedure | 05.10.1982 | Examination requested [1982/50] | 01.09.1983 | Despatch of a communication from the examining division (Time limit: M06) | 18.01.1984 | Reply to a communication from the examining division | 11.04.1984 | Despatch of a communication from the examining division (Time limit: M04) | 09.07.1984 | Application withdrawn by applicant [1984/38] | Fees paid | Renewal fee | 06.04.1983 | Renewal fee patent year 03 | 06.04.1984 | Renewal fee patent year 04 |
| 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. | Documents cited: | Search | [X] - Electronics Letters, Vol. 16, No. 7, March 1980, Hitchin, Herts (GB) R.A. BERGH et al.: "Single-Mode Fibre Optic Directional Coupler"pages 260-261 | [X] - Electronics Letters, Vol. 14, No. 5, March 1978, Hitchin, Herts (GB) Y. TSUJIMOTO et al.: "Fabrication of Low-Loss 3dB Couplers with Multimode Optical Fibres"pages 157-158 |