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EP0125758
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Extract from the Register of European Patents
EP About this file: EP0125758
| EP0125758 - Coherent reflectometers [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 05.02.1988 Database last updated on 20.12.2024 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states STC PLC 10, Maltravers Street London, WC2R 3HA / GB | [1986/49] |
| Former [1986/24] | For all designated states STC PLC 190 Strand London, WC2R 1DU / GB | ||
| Former [1984/47] | For all designated states STANDARD TELEPHONES AND CABLES PUBLIC LIMITED COMPANY 190 Strand London, WC2R 1DU / GB | Inventor(s) | 01 /
Wright, Stephen 11, Venetia Road London, N4 / GB | [1984/47] | Representative(s) | Dennis, Mark Charles Nortel Networks Intellectual Property Law Group London Road Harlow Essex CM17 9NA / GB | [N/P] |
| Former [1984/47] | Dennis, Mark Charles Nortel Limited Patents and Licensing West Road Harlow Essex CM20 2SH / GB | Application number, filing date | 84301760.9 | 15.03.1984 | [1984/47] | Priority number, date | GB19830010158 | 14.04.1983 Original published format: GB 8310158 | [1984/47] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0125758 | Date: | 21.11.1984 | Language: | EN | [1984/47] | Type: | A3 Search report | No.: | EP0125758 | Date: | 25.02.1987 | Language: | EN | [1987/09] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 06.01.1987 | Classification | IPC: | G01M11/02 | [1984/47] | CPC: |
G01M11/3172 (EP,US)
| Designated contracting states | AT, BE, CH, DE, FR, IT, LI, LU, NL, SE [1984/47] | Title | German: | Kohärentes Reflektometer | [1984/47] | English: | Coherent reflectometers | [1984/47] | French: | Réflectomètre cohérent | [1984/47] | File destroyed: | 08.08.1994 | Examination procedure | 27.10.1987 | Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time [1988/12] | 05.02.1988 | Application deemed to be withdrawn, date of legal effect [1988/12] | Fees paid | Renewal fee | 06.02.1986 | Renewal fee patent year 03 | Penalty fee | Penalty fee Rule 85b EPC 1973 | 25.08.1987 | M02 Not yet paid | Additional fee for renewal fee | 31.03.1987 | 04 M06 Not yet paid |
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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]GB2048603 (KOKUSAI DENSHIN DENWA CO LTD); | [Y]GB2033078 (FELTEN & GUILLEAUME CARLSWERK); | [A]DE2822567 (CABLES DE LYON GEOFFROY DELORE); | [A]EP0008104 (HONEYWELL GMBH [DE]); | [Y]JPS57118136 | [AP] - ELECTRONICS LETTERS, vol. 20, no. 3, 2nd February 1984pages 110-112; D.J. HEATLEY et al.: "Video transmission over cabled monomode fibre at 1.523 mum using PFM with 2-PSK heterodyne detection" | [Y] - JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, vol. 72, no. 9, September 1982, pages 1167-1170, New YorkUS; P. GALLION et al.: "Single-frequency laser phase-noise limitation in single-mode optical-fiber coherent-detection systems with correlated fields" | [Y] - IEEE JOURNAL OF QUANTUM ELECTRONICS, vol. QE-18, no. 1, January 1982, pages 124-129, New YorkUS; E. VOGES et al.: "Optical phase and amplitude measurement by single sideband homodyne detection" | [Y] - PATENT ABSTRACTS OF JAPAN, vol. 6, no. 212 (P-151)[1090]26th October 1982; & JP-A-57 118 136 (NIPPON DENSHIN DENWA KOSHA) 22-07-1982 | [A] - MESS- UND PR]FTECHNIK, vol. 103, no. 4, 1982pages 185-191; E. MEIER-ENGELEN "Fehlerortung an Lichtwellenleitern" |