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EP0093523
European procedure
Extract from the Register of European Patents
EP About this file: EP0093523
| EP0093523 - Digital switching network for telecommunications exchange [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 29.06.1987 Database last updated on 10.03.2026 | Most recent event Tooltip | 29.06.1987 | No opposition filed within time limit | published on 19.08.1987 [1987/34] | Applicant(s) | For all designated states THE PLESSEY COMPANY plc Vicarage Lane Ilford Essex, IG1 4AQ / GB | [N/P] |
| Former [1983/45] | For all designated states THE PLESSEY COMPANY plc Vicarage Lane Ilford Essex, IG1 4AQ / GB | Inventor(s) | 01 /
Maddern, Thomas Slade 38 Cutler Place Cole Hill Dorset / GB | 02 /
Ansell, John William 8 North Road Poole Dorset / GB | 03 /
Philip, Alexander Schroder Giddylake House Wimborne Dorset / GB | [1983/45] | Representative(s) | Hart, Robert John Plessey Telecommunications plc Edge Lane Liverpool L7 9NW / GB | [1983/45] | Application number, filing date | 83302093.6 | 14.04.1983 | [1983/45] | Priority number, date | GB19820011924 | 24.04.1982 Original published format: GB 8211924 | [1983/45] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0093523 | Date: | 09.11.1983 | Language: | EN | [1983/45] | Type: | B1 Patent specification | No.: | EP0093523 | Date: | 06.08.1986 | Language: | EN | [1986/32] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 24.08.1983 | Classification | IPC: | H04Q11/04 | [1983/45] | CPC: |
H04Q11/04 (EP,US);
H04M3/22 (EP,US)
| Designated contracting states | BE, DE, FR, IT, NL, SE [1983/45] | Title | German: | Digitales Koppelfeld für Fernsprechvermittlungsanlagen | [1983/45] | English: | Digital switching network for telecommunications exchange | [1983/45] | French: | Réseau de commutation numérique pour centraux de télécommunication | [1983/45] | Examination procedure | 26.03.1984 | Examination requested [1984/23] | 27.02.1985 | Despatch of a communication from the examining division (Time limit: M04) | 28.06.1985 | Reply to a communication from the examining division | 20.08.1985 | Despatch of communication of intention to grant (Approval: ) | 29.11.1985 | Communication of intention to grant the patent | 20.02.1986 | Fee for grant paid | 20.02.1986 | Fee for publishing/printing paid | Opposition(s) | 07.05.1987 | No opposition filed within time limit [1987/34] | Fees paid | Renewal fee | 11.04.1985 | Renewal fee patent year 03 | 18.04.1986 | Renewal fee patent year 04 |
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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] TELECOMMUNICATIONS AND RADIO ENGINEERING, vol. 25/26, no. 11, November 1971, pages 17-19, Washington, USA [Y] | [A] THE POST OFFICE ELECTRICAL ENGINEERS' JOURNAL, vol. 73, April 1980, pages 19-26, London, G.B. [A] |