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EP0897454
European procedure
Extract from the Register of European Patents
EP About this file: EP0897454
| EP0897454 - CLOSED LOOP FLUID-HANDLING SYSTEM FOR USE DURING DRILLING OF WELLBORES [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 04.01.2002 Database last updated on 19.07.2024 | Most recent event Tooltip | 04.01.2002 | No opposition filed within time limit | published on 20.02.2002 [2002/08] | Applicant(s) | For all designated states BAKER HUGHES INCORPORATED 3900 Essex Lane Suite 1200 Houston TX 77027 / US | [N/P] |
| Former [1999/08] | For all designated states BAKER HUGHES INCORPORATED 3900 Essex Lane Suite 1200 Houston Texas 77027 / US | Inventor(s) | 01 /
BRADFIELD, David H. 19 Harlington Avenue, Grove Wantage, Oxfordshire OX12 7NQ / GB | 02 /
CUMMINS, David P. J. Hillside, Ayres Lane, Burghclere Newbury, Berkshire RG20 9HG / GB | 03 /
BRIDGER, Philip J. 8 Lavender Close Rugby, Warwickshire CV23 0XB / GB | [1999/08] | Representative(s) | Finck, Dieter, et al V. Füner Ebbinghaus Finck Hano Patentanwälte Mariahilfplatz 2-3 81541 München / DE | [N/P] |
| Former [1999/08] | Finck, Dieter, Dr.Ing., et al Patentanwälte v. Füner, Ebbinghaus, Finck Mariahilfplatz 2 - 3 81541 München / DE | Application number, filing date | 97922650.3 | 05.05.1997 | [1999/08] | WO1997US07533 | Priority number, date | US19960642828 | 03.05.1996 Original published format: US 642828 | US19960030752P | 29.10.1996 Original published format: US 30752 P | [1999/08] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO9742395 | Date: | 13.11.1997 | Language: | EN | [1997/49] | Type: | A1 Application with search report | No.: | EP0897454 | Date: | 24.02.1999 | Language: | EN | The application published by WIPO in one of the EPO official languages on 13.11.1997 takes the place of the publication of the European patent application. | [1999/08] | Type: | B1 Patent specification | No.: | EP0897454 | Date: | 28.02.2001 | Language: | EN | [2001/09] | Search report(s) | International search report - published on: | EP | 13.11.1997 | Classification | IPC: | E21B21/06, E21B21/14 | [1999/08] | CPC: |
E21B21/06 (EP);
E21B21/085 (EP);
E21B21/14 (EP);
E21B44/00 (EP)
| Designated contracting states | BE, DE, FR, GB, IT, NL [1999/08] | Title | German: | SYSTEM ZUR SPÜLUNGSAUFBEREITUNG IM GESCHLOSSENEN KREISLAUF ZUM EINSATZ IN BRUNNENBOHRUNGEN | [1999/08] | English: | CLOSED LOOP FLUID-HANDLING SYSTEM FOR USE DURING DRILLING OF WELLBORES | [1999/08] | French: | SYSTEME DE MANUTENTION DE FLUIDES EN BOUCLE FERMEE UTILISE AU COURS DU FORAGE DE PUITS | [1999/08] | Entry into regional phase | 28.10.1998 | National basic fee paid | 28.10.1998 | Designation fee(s) paid | 28.10.1998 | Examination fee paid | Examination procedure | 24.11.1997 | Request for preliminary examination filed International Preliminary Examining Authority: EP | 28.10.1998 | Examination requested [1999/08] | 08.03.1999 | Despatch of a communication from the examining division (Time limit: M06) | 17.09.1999 | Reply to a communication from the examining division | 16.03.2000 | Despatch of communication of intention to grant (Approval: Yes) | 13.07.2000 | Communication of intention to grant the patent | 28.08.2000 | Fee for grant paid | 28.08.2000 | Fee for publishing/printing paid | Divisional application(s) | EP00112899.0 / EP1048819 | Opposition(s) | 29.11.2001 | No opposition filed within time limit [2002/08] | Fees paid | Renewal fee | 23.04.1999 | Renewal fee patent year 03 | 25.04.2000 | 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. | Cited in | International search | [XA]US5010966 (STOKLEY CHARLES O [US], et al) [X] 1-5 * column 2, line 20 - column 4, line 19 * [A] 6,14,15; | [X]US5415776 (HOMAN EDWIN D [CA]) [X] 1 * claim 1 *; | [X]EP0047347 (CONOCO INC [US]) [X] 1 * claim 1 *; | [X]US4449594 (SPARKS RONALD L [US]) [X] 17-19 * column 4, line 58 - column 6, line 9 *; | [X]US5249635 (KING CHARLES W [US], et al) [X] 17-19 * claims 1-9 *; | [X]US5411105 (GRAY BENJAMIN [CA]) [X] 17,18,20 * column 5, line 6 - line 29; claims 1-3 * |