-
EP0176190
European procedure
Extract from the Register of European Patents
EP About this file: EP0176190
| EP0176190 - Method of fracturing subterranean formations [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 08.05.1990 Database last updated on 22.08.2024 | Most recent event Tooltip | 08.05.1990 | No opposition filed within time limit | published on 27.06.1990 [1990/26] | Applicant(s) | For all designated states HALLIBURTON COMPANY P.O. Drawer 1431 Duncan Oklahoma 73536 / US | [N/P] |
| Former [1986/14] | For all designated states HALLIBURTON COMPANY P.O. Drawer 1431 Duncan Oklahoma 73536 / US | Inventor(s) | 01 /
Almond, Stephen William 1836 Topaz Drive Ventura, CA 93003 / US | 02 /
Conway, Michael Wayne 1501 West Cedar Duncan, OK 73533 / US | [1989/23] |
| Former [1986/14] | 01 /
Almond, Stephen William 1836 Topaz Drive Ventura, CA 93003 / US | ||
| 02 /
Conway, Michael Wayne 1501 West Cedar Duncan Oklahoma 73533 / US | Representative(s) | Wain, Christopher Paul, et al A.A. Thornton & Co. 235 High Holborn London WC1V 7LE / GB | [N/P] |
| Former [1986/14] | Wain, Christopher Paul, et al A.A. THORNTON & CO. Northumberland House 303-306 High Holborn London WC1V 7LE / GB | Application number, filing date | 85305404.7 | 29.07.1985 | [1986/14] | Priority number, date | US19840654823 | 26.09.1984 Original published format: US 654823 | [1986/14] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0176190 | Date: | 02.04.1986 | Language: | EN | [1986/14] | Type: | A3 Search report | No.: | EP0176190 | Date: | 04.03.1987 | Language: | EN | [1987/10] | Type: | B1 Patent specification | No.: | EP0176190 | Date: | 07.06.1989 | Language: | EN | [1989/23] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 15.01.1987 | Classification | IPC: | E21B43/25 | [1986/14] | CPC: |
C09K8/685 (EP,US);
Y10S507/903 (EP,US);
Y10S507/922 (EP,US)
| Designated contracting states | DE, FR, GB, IT, NL [1986/14] | Title | German: | Verfahren zum Frakturieren unterirdischer Lagerstätten | [1986/14] | English: | Method of fracturing subterranean formations | [1986/14] | French: | Procédé pour la fracturation de formations souterraines | [1986/14] | Examination procedure | 08.04.1987 | Examination requested [1987/25] | 27.05.1988 | Despatch of communication of intention to grant (Approval: No) | 14.11.1988 | Despatch of communication of intention to grant (Approval: later approval) | 05.12.1988 | Communication of intention to grant the patent | 23.02.1989 | Fee for grant paid | 23.02.1989 | Fee for publishing/printing paid | Opposition(s) | 08.03.1990 | No opposition filed within time limit [1990/26] | Fees paid | Renewal fee | 07.07.1987 | Renewal fee patent year 03 | 13.07.1988 | Renewal fee patent year 04 |
| Opt-out from the exclusive Tooltip competence of the Unified Patent Court | See the Register of the Unified Patent Court for opt-out data | ||
| 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]US3417820 (EPLER WALTER N, et al); | [Y]US3483121 (JORDAN WESLEY A); | [A]US3954626 (GREMINGER JR GEORGE K, et al); | [A]US4096326 (REID ALBERT R); | [A]US4324668 (HARRIS LAWRENCE E); | [Y]EP0112102 (HALLIBURTON CO [US]); | [A]US4464270 (HOLLENBEAK KEITH H [US], et al) |