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EP0166082
European procedure
Extract from the Register of European Patents
EP About this file: EP0166082
| EP0166082 - Torque limiting hydraulic circuit [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 12.07.1989 Database last updated on 21.03.2026 | Most recent event Tooltip | 12.07.1989 | No opposition filed within time limit | published on 30.08.1989 [1989/35] | Applicant(s) | For all designated states Weatherford Oil Tool GmbH Hainhäuser Weg 150 D-3012 Langenhagen 1 / DE | [1986/01] | Inventor(s) | 01 /
Schulze-Beckinghausen, Jörg E. Stephanusstrasse 11 D-3008 Garbsen 4 / DE | [1986/01] | Representative(s) | Arendt, Helmut Patentanwalt Roscherstrasse 12 30161 Hannover / DE | [N/P] |
| Former [1986/01] | Arendt, Helmut, Dipl.-Ing. Patentanwalt Bergiusstrasse 2 c D-30655 Hannover / DE | Application number, filing date | 85103342.3 | 22.03.1985 | [1986/01] | Priority number, date | DE19843423757 | 28.06.1984 Original published format: DE 3423757 | [1986/01] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0166082 | Date: | 02.01.1986 | Language: | DE | [1986/01] | Type: | B1 Patent specification | No.: | EP0166082 | Date: | 07.09.1988 | Language: | DE | [1988/36] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 15.10.1985 | Classification | IPC: | E21B19/16, F15B11/02 | [1986/01] | CPC: |
E21B19/166 (EP)
| Designated contracting states | AT, FR, GB, IT, NL, SE [1986/01] | Title | German: | Drehmomentbegrenzender Hydraulikkreislauf | [1986/01] | English: | Torque limiting hydraulic circuit | [1986/01] | French: | Circuit hydraulique limitant le couple | [1986/01] | Examination procedure | 05.03.1986 | Examination requested [1986/19] | 16.02.1988 | Despatch of communication of intention to grant (Approval: Yes) | 09.03.1988 | Communication of intention to grant the patent | 06.05.1988 | Fee for grant paid | 06.05.1988 | Fee for publishing/printing paid | Opposition(s) | 08.06.1989 | No opposition filed within time limit [1989/35] | Fees paid | Renewal fee | 21.01.1987 | Renewal fee patent year 03 | 15.03.1988 | 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] OFFSHORE, Band 43, Nr. 5, Mai 1983, Seite 213, Tulsa, Oklahoma, US; "Varco designs giant torque wrench for Conoco's TLP" | [Y] HYDRAULICS AND PNEUMATICS, Band 33, Nr. 5, Mai 1980, Seite 20, Cleveland, Ohio, US; "Digital valve manifold sets die casting pressures" [Y] |