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EP0316985
European procedure
Extract from the Register of European Patents
EP About this file: EP0316985
| EP0316985 - A method of monitoring the drilling operations by analysing the circulating drilling mud [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 17.11.2000 Database last updated on 03.09.2024 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states Services Pétroliers Schlumberger 42, rue Saint Dominique 75007 Paris / FR | [N/P] |
| Former [1991/21] | For all designated states SERVICES PETROLIERS SCHLUMBERGER 42, rue Saint-Dominique F-75007 Paris / FR | ||
| Former [1989/21] | For all designated states Forex Neptune SA 50 Avenue Jean Jaures F-92120 Montrouge / FR | Inventor(s) | 01 /
Jones, Timothy Gareth John 242 High Street Cottenham Cambridge CB4 4RZ / GB | 02 /
Hughes, Trevor 10 Mill End Close Cherry Hinton Cambridge CB1 4HS / GB | [1989/21] | Representative(s) | Mirza, Akram Karim Intellectual Property Law Department Schlumberger Cambridge Research Limited High Cross Madingley Road Cambridge CB3 0EL / GB | [N/P] |
| Former [1996/50] | Mirza, Akram Karim Schlumberger Cambridge Research Limited, High Cross, Madingley Road Cambridge CB3 OEL / GB | ||
| Former [1991/21] | Hyden, Martin Douglas c/o Schlumberger Cambridge Research Limited, High Cross, PO Box 153 Cambridge CB3 OHG / GB | ||
| Former [1989/21] | Dupont, Henri c/o Schlumberger Cambridge Research Limited Post Box 153 Cambridge CB3 0HG / GB | Application number, filing date | 88202433.4 | 01.11.1988 | [1989/21] | Priority number, date | GB19870026727 | 14.11.1987 Original published format: GB 8726727 | [1989/21] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0316985 | Date: | 24.05.1989 | Language: | EN | [1989/21] | Type: | B1 Patent specification | No.: | EP0316985 | Date: | 19.01.2000 | Language: | EN | [2000/03] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.03.1989 | Classification | IPC: | E21B21/08, E21B44/00, E21B49/00 | [1989/21] | CPC: |
E21B44/00 (EP,US);
E21B21/08 (EP,US);
E21B49/005 (EP,US);
G01N30/02 (EP,US)
| C-Set: |
G01N30/02, B01D15/36 (EP,US)
| Designated contracting states | DE, FR, IT, NL [1989/21] | Title | German: | Verfahren zum Steuern eines Bohrvorganges durch Analysierung des zirkulierenden Bohrschlammes | [1989/21] | English: | A method of monitoring the drilling operations by analysing the circulating drilling mud | [1989/21] | French: | Procédé de contrôle des opérations de forage par l'analyse de la boue de forage en circulation | [1989/21] | Examination procedure | 24.10.1989 | Examination requested [1989/51] | 28.05.1991 | Despatch of a communication from the examining division (Time limit: M04) | 24.07.1991 | Reply to a communication from the examining division | 06.11.1991 | Despatch of a communication from the examining division (Time limit: M04) | 22.02.1992 | Reply to a communication from the examining division | 16.07.1992 | Date of oral proceedings | 07.08.1992 | Minutes of oral proceedings despatched | 16.01.1996 | Despatch of a communication from the examining division (Time limit: M04) | 14.05.1996 | Reply to a communication from the examining division | 07.11.1996 | Despatch of a communication from the examining division (Time limit: M04) | 11.03.1997 | Reply to a communication from the examining division | 21.10.1997 | Date of oral proceedings | 20.11.1997 | Despatch of communication that the application is refused, reason: substantive examination {1} | 25.11.1997 | Minutes of oral proceedings despatched | 05.07.1999 | Despatch of communication of intention to grant (Approval: Yes) | 20.07.1999 | Communication of intention to grant the patent | 12.10.1999 | Fee for grant paid | 12.10.1999 | Fee for publishing/printing paid | Appeal following examination | 22.01.1998 | Appeal received No. T0422/98 | 03.04.1998 | Statement of grounds filed | 21.05.1999 | Result of appeal procedure: remittal for grant | 21.09.1992 | Appeal received No. T0045/93 | 07.12.1992 | Statement of grounds filed | 14.06.1995 | Result of appeal procedure: remittal for grant | Opposition(s) | 20.10.2000 | No opposition filed within time limit [2001/01] | Fees paid | Renewal fee | 01.10.1990 | Renewal fee patent year 03 | 06.09.1991 | Renewal fee patent year 04 | 14.10.1992 | Renewal fee patent year 05 | 28.08.1993 | Renewal fee patent year 06 | 16.09.1994 | Renewal fee patent year 07 | 12.08.1995 | Renewal fee patent year 08 | 11.11.1996 | Renewal fee patent year 09 | 10.09.1997 | Renewal fee patent year 10 | 26.10.1998 | Renewal fee patent year 11 | 20.08.1999 | Renewal fee patent year 12 |
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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]US3409092 (DOREMUS EUGENE H); | [A]GB1280227 (MOBIL OIL CORP [US]); | [A]US3911741 (ROCHON ROBERT W, et al); | [A]GB2032981 (EXXON PRODUCTION RESEARCH CO); | [A]US4413511 (GODBEY JOHN K [US]); | [A]CA1222933 (TRANS CANADA RESOURCES LTD) | Examination | EP0282231 |