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EP0209310
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EP About this file: EP0209310
| EP0209310 - Axial balancing device for downhole drilling motors [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 15.09.1989 Database last updated on 02.11.2024 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states WEIR DRILLING LTD. 149 Newlands Road Cathcart Glasgow G44 4EX Scotland / GB | [N/P] |
| Former [1987/04] | For all designated states WEIR DRILLING LTD. 149 Newlands Road Cathcart Glasgow G44 4EX Scotland / GB | Inventor(s) | 01 /
Ryall, Michael Leslie 149 Newlands Road Cathcart Glasgow, G44 4EX / GB | 02 /
Grant, Alexander Angus 149 Newlands Road Cathcart Glasgow, G44 4EX / GB | 03 /
Smith, Anthony Michael 149 Newlands Road Cathcart Glasgow, G44 4EX / GB | 04 /
Downie, Andrew McPherson 149 Newlands Road Cathcart Glasgow, G44 4EX / GB | 05 /
Taylor, John MacFarlane 149 Newlands Road Cathcart Glasgow, G44 4EX / GB | 06 /
Derrick, John 149 Newlands Road Cathcart Glasgow, G44 4EX / GB | [1987/04] | Representative(s) | McCallum, William Potter, et al Marks & Clerk 19 Royal Exchange Square Glasgow G1 3AE / GB | [N/P] |
| Former [1987/04] | McCallum, William Potter, et al Cruikshank & Fairweather 19 Royal Exchange Square Glasgow G1 3AE Scotland / GB | Application number, filing date | 86305258.5 | 08.07.1986 | [1987/04] | Priority number, date | GB19850017747 | 13.07.1985 Original published format: GB 8517747 | [1987/04] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0209310 | Date: | 21.01.1987 | Language: | EN | [1987/04] | Type: | A3 Search report | No.: | EP0209310 | Date: | 11.05.1988 | Language: | EN | [1988/19] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 21.03.1988 | Classification | IPC: | F03B13/02, E21B4/02 | [1987/04] | CPC: |
F03B13/02 (EP);
E21B4/02 (EP)
| Designated contracting states | DE, FR, GB [1987/04] | Title | German: | Vorrichtung zur Ausgleichung des Axialdruckes eines Bohrmotors im Bohrloch | [1987/04] | English: | Axial balancing device for downhole drilling motors | [1987/04] | French: | Dispositif de compensation axiale pour un moteur de forage de fond de puits | [1987/04] | File destroyed: | 12.05.1995 | Examination procedure | 14.11.1988 | Application deemed to be withdrawn, date of legal effect [1989/44] | 12.06.1989 | Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time [1989/44] | Fees paid | Penalty fee | Penalty fee Rule 85b EPC 1973 | 17.04.1989 | M01 Not yet paid | Additional fee for renewal fee | 01.08.1988 | 03 M06 Not yet paid |
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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]FR1161543 ; | [A]GB781860 ; | [A]US4260032 ; | [A]US4493381 ; | [A]US4308927 ; | [A]FR2240345 |