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EP0288123
European procedure
Extract from the Register of European Patents
EP About this file: EP0288123
| EP0288123 - Downhole drilling motor [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 07.10.1993 Database last updated on 30.03.2026 | Most recent event Tooltip | 07.10.1993 | No opposition filed within time limit | published on 24.11.1993 [1993/47] | Applicant(s) | For all designated states Shell Internationale Research Maatschappij B.V. Carel van Bylandtlaan 30 2596 HR Den Haag / NL | [N/P] |
| Former [1988/43] | For all designated states SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. Carel van Bylandtlaan 30 NL-2596 HR Den Haag / NL | Inventor(s) | 01 /
Zijsling, Djurre Hans Volmerlaan 6 NL-2280 AB Rijswijk / NL | [1992/49] |
| Former [1988/43] | 01 /
Zijsling, Djurre Hans Volmerlaan 6 Rijswijk / NL | Representative(s) | (deleted) | [1992/49] |
| Former [1991/33] | Zeestraten, Albertus Wilhelmus Joannes, et al Shell International B.V. P.O. Box 384 NL-2501 CJ The Hague / NL | ||
| Former [1988/43] | Aalbers, Onno P.O. Box 162 NL-2501 AN The Hague / NL | Application number, filing date | 88200736.2 | 15.04.1988 | [1988/43] | Priority number, date | GB19870009380 | 21.04.1987 Original published format: GB 8709380 | [1988/43] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0288123 | Date: | 26.10.1988 | Language: | EN | [1988/43] | Type: | A3 Search report | No.: | EP0288123 | Date: | 07.03.1990 | Language: | EN | [1990/10] | Type: | B1 Patent specification | No.: | EP0288123 | Date: | 02.12.1992 | Language: | EN | [1992/49] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 16.01.1990 | Classification | IPC: | E21B4/02, E21B44/00 | [1990/03] | CPC: |
E21B4/02 (EP,US);
E21B44/005 (EP,US)
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| Former IPC [1988/43] | E21B4/02 | Designated contracting states | AT, BE, DE, FR, GB, IT, NL [1988/43] | Title | German: | Bohrmotor im Bohrloch | [1988/43] | English: | Downhole drilling motor | [1988/43] | French: | Moteur de forage de fond de trou | [1988/43] | Examination procedure | 17.07.1990 | Examination requested [1990/37] | 20.09.1991 | Despatch of a communication from the examining division (Time limit: M04) | 05.12.1991 | Reply to a communication from the examining division | 28.04.1992 | Despatch of communication of intention to grant (Approval: Yes) | 26.05.1992 | Communication of intention to grant the patent | 22.07.1992 | Fee for grant paid | 22.07.1992 | Fee for publishing/printing paid | Opposition(s) | 03.09.1993 | No opposition filed within time limit [1993/47] | Fees paid | Renewal fee | 06.03.1990 | Renewal fee patent year 03 | 08.03.1991 | Renewal fee patent year 04 | 28.04.1992 | Renewal fee patent year 05 |
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