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EP0305240
European procedure
Extract from the Register of European Patents
EP About this file: EP0305240
| EP0305240 - Method and device for modifying the transmission coefficient of the energy created by a borehole's seismic source towards geological formations [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 23.07.1992 Database last updated on 12.07.2024 | Most recent event Tooltip | 23.07.1992 | No opposition filed within time limit | published on 09.09.1992 [1992/37] | Applicant(s) | For all designated states Institut Français du Pétrole 4, Avenue de Bois Préau 92502 Rueil-Malmaison / FR | [N/P] |
| Former [1989/09] | For all designated states INSTITUT FRANCAIS DU PETROLE 4, Avenue de Bois Préau F-92502 Rueil-Malmaison / FR | Inventor(s) | 01 /
Marin, Eric 11, rue Pont Colbert F-78000 Versailles / FR | 02 /
Le Comte, Marcel 20, allée des Sycomores F-95870 Bezon / FR | [1989/09] | Representative(s) | (deleted) | [1990/17] |
| Former [1989/09] | Kermarrec, Michelle, et al Institut Français du Pétrole 4, avenue de Bois-Préau F-92502 Rueil-Malmaison / FR | Application number, filing date | 88401947.2 | 27.07.1988 | [1989/09] | Priority number, date | FR19870010722 | 28.07.1987 Original published format: FR 8710722 | [1989/09] | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0305240 | Date: | 01.03.1989 | Language: | FR | [1989/09] | Type: | B1 Patent specification | No.: | EP0305240 | Date: | 18.09.1991 | Language: | FR | [1991/38] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 10.01.1989 | Classification | IPC: | G01V1/047, G01V1/40, E21B33/12 | [1989/09] | CPC: |
E21B33/12 (EP,US);
G01V1/047 (EP,US);
G01V1/46 (EP,US);
Y10S181/401 (EP,US);
Y10S367/912 (EP,US)
| Designated contracting states | DE, GB, IT, NL [1989/09] | Title | German: | Verfahren und Anordnung zur Verbesserung des Übertragungskoeffizienten, erzeugt von einer seismischen Quelle in einem Bohrloch und übertragen in geologische Schichten | [1989/09] | English: | Method and device for modifying the transmission coefficient of the energy created by a borehole's seismic source towards geological formations | [1989/09] | French: | Méthode et dispositif pour améliorer le coefficient de transmission aux formations géologiques de l'énergie créée par une source sismique de puits | [1989/09] | Examination procedure | 03.08.1988 | Examination requested [1989/09] | 11.07.1990 | Despatch of a communication from the examining division (Time limit: M04) | 29.09.1990 | Reply to a communication from the examining division | 12.12.1990 | Despatch of communication of intention to grant (Approval: Yes) | 04.02.1991 | Communication of intention to grant the patent | 07.05.1991 | Fee for grant paid | 07.05.1991 | Fee for publishing/printing paid | Opposition(s) | 20.06.1992 | No opposition filed within time limit [1992/37] | Fees paid | Renewal fee | 23.06.1990 | Renewal fee patent year 03 | 15.07.1991 | 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 | [A]US2281751 (CLOUD RAYMOND T); | [Y]US3100536 (TAMPLEN JACK W); | [A]US3395728 (TAMPLEN JACK W); | [A]FR2172808 (INST FRANCAIS DU PETROLE [FR]); | [A]FR2469720 (GAUDIANI PIERRE [FR]); | [Y]EP0213950 (PETROPHYSICAL SERVICES INC [US]) | Examination | EP0236226 |