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EP0040559
European procedure
Extract from the Register of European Patents
EP About this file: EP0040559
| EP0040559 - Piezoelectric convolution device using elastic waves [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 04.06.1985 Database last updated on 03.08.2024 | Most recent event Tooltip | 04.06.1985 | No opposition filed within time limit | published on 07.08.1985 [1985/32] | Applicant(s) | For all designated states THOMSON-CSF 173, Boulevard Haussmann F-75008 Paris / FR | [1982/21] |
| Former [1981/47] | For all designated states THOMSON-CSF 173, Boulevard Haussmann F-75008 Paris / FR | Inventor(s) | 01 /
Gautier, Hervé THOMSON-CSF SCPI 173, bld Haussmann F-75360 Paris Cedex 08 / FR | 02 /
Maerfeld, Charles THOMSON-CSF SCPI 173, bld Haussmann F-75360 Paris Cedex 08 / FR | [1981/47] | Representative(s) | Desperrier, Jean-Louis, et al Thomson-CSF Propriété Intellectuelle, 13, Avenue du Président Salvador Allende 94117 Arcueil Cédex / FR | [N/P] |
| Former [1983/30] | Desperrier, Jean-Louis, et al THOMSON-CSF SCPI B.P. 329 50, rue Jean-Pierre Timbaud F-92402 Courbevoie Cédex / FR | Application number, filing date | 81400686.2 | 30.04.1981 | [1981/47] | Priority number, date | FR19800011225 | 20.05.1980 Original published format: FR 8011225 | [1981/47] | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0040559 | Date: | 25.11.1981 | Language: | FR | [1981/47] | Type: | B1 Patent specification | No.: | EP0040559 | Date: | 08.08.1984 | Language: | FR | [1984/32] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 09.09.1981 | Classification | IPC: | G06G7/195 | [1981/47] | CPC: |
G06G7/195 (EP,US)
| Designated contracting states | DE, GB, IT [1981/47] | Title | German: | Piezoelektrische Konvolutionseinrichtung mit elastischen Wellen | [1981/47] | English: | Piezoelectric convolution device using elastic waves | [1981/47] | French: | Dispositif convoluteur piézoélectrique à ondes élastiques | [1981/47] | Examination procedure | 12.12.1981 | Examination requested [1982/34] | 24.06.1983 | Despatch of a communication from the examining division (Time limit: M04) | 07.10.1983 | Reply to a communication from the examining division | 01.12.1983 | Despatch of communication of intention to grant (Approval: ) | 12.01.1984 | Communication of intention to grant the patent | 04.04.1984 | Fee for grant paid | 04.04.1984 | Fee for publishing/printing paid | Opposition(s) | 09.05.1985 | No opposition filed within time limit [1985/32] | Fees paid | Renewal fee | 19.03.1983 | Renewal fee patent year 03 | 22.03.1984 | 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 | [ ] - IEEE PROCEEDINGS OF THE ULTRASONICS SYMPOSIUM,Monterey,5/7-11-1973 New York, US W.R. SHREVE et al.: "Strip coupled acoustic convolvers", pages 145-147 | [ ] - IEEE PROCEEDINGS OF THE ULTRASONICS SYMPOSIUM, Monterey 5-7 novembre 1973 New York, US L.R. ADKINS: "Strip coupled A1N and Si on sapphire convolvers", pages 148-151 | [A] - PROCEEDINGS OF THE IEEE, mai 1976, vol. 64, no. 5, New York, US G.S. KINO: "Acoustoelectric interactions in acoustic-surface-wave devices", pages 724-748 | [A] - ELECTRONICS LETTERS, vol. 8, no. 22, 2 novembre 1972 Hitchin Herts, GB S. LUDVIK et al.:"Nonlinear interaction of acoustic surface waves in epitaxial gallium arsenide", pages 551-552 |