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EP0089171
European procedure
Extract from the Register of European Patents
EP About this file: EP0089171
| EP0089171 - Quadrature tach decoder circuit [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 08.06.1988 Database last updated on 03.06.2024 | Most recent event Tooltip | 08.06.1988 | No opposition filed within time limit | published on 27.07.1988 [1988/30] | Applicant(s) | For all designated states AMPEX CORPORATION 401 Broadway M.S. 3-35 Redwood City California 94063-3199 / US | [N/P] |
| Former [1983/38] | For all designated states AMPEX CORPORATION 401 Broadway M.S. 3-35 Redwood City California 94063-3199 / US | Inventor(s) | 01 /
Williams, Marshall 35900 Turpin Way Fremont California / US | 02 /
O'Gwynn, David C. 1521 Lago Apt. 24 San Mateo California / US | [1983/38] | Representative(s) | Horton, Andrew Robert Grant, et al Bowles Horton Felden House Dower Mews High Street Berkhamsted, Hertfordshire HP4 2BL / GB | [N/P] |
| Former [1983/38] | Horton, Andrew Robert Grant, et al BOWLES HORTON Felden House Dower Mews High Street Berkhamsted Hertfordshire HP4 2BL / GB | Application number, filing date | 83301247.9 | 08.03.1983 | [1983/38] | Priority number, date | US19820358395 | 15.03.1982 Original published format: US 358395 | [1983/38] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0089171 | Date: | 21.09.1983 | Language: | EN | [1983/38] | Type: | B1 Patent specification | No.: | EP0089171 | Date: | 22.07.1987 | Language: | EN | [1987/30] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 12.07.1983 | Classification | IPC: | G01P13/04 | [1983/38] | CPC: |
G01P13/045 (EP,US)
| Designated contracting states | CH, DE, FR, GB, LI, NL [1983/38] | Title | German: | Dekoderschaltung für 90o-phasenverschobene Tachosignale | [1983/38] | English: | Quadrature tach decoder circuit | [1983/38] | French: | Circuit décodeur de signaux tachometrique en quadrature | [1983/38] | Examination procedure | 20.02.1984 | Examination requested [1984/17] | 19.04.1985 | Despatch of a communication from the examining division (Time limit: M06) | 04.11.1985 | Reply to a communication from the examining division | 01.04.1986 | Despatch of communication of intention to grant (Approval: ) | 18.07.1986 | Communication of intention to grant the patent | 17.09.1986 | Fee for grant paid | 17.09.1986 | Fee for publishing/printing paid | Opposition(s) | 23.04.1988 | No opposition filed within time limit [1988/30] | Request for further processing for: | 04.11.1985 | Request for further processing filed | 04.11.1985 | Full payment received (date of receipt of payment) Request granted | 27.11.1985 | Decision despatched | Fees paid | Renewal fee | 19.02.1985 | Renewal fee patent year 03 | 15.03.1986 | Renewal fee patent year 04 | 09.03.1987 | Renewal fee patent year 05 |
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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 | [X]US3710265 (GRAY A); | [Y]DE2352975 (TELDIX GMBH); | [Y]US4300039 (AVINS JEREMIAH Y); | [Y]US4308500 (AVINS JEREMIAH Y) | [Y] - ELECTRONICS INTERNATIONAL, vol. 54, no. 12, June 1981, page 167, New York USA; B. McCELLAND: "Fewer parts resolve shaft encoder data". |