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EP0169074
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EP About this file: EP0169074
| EP0169074 - Treatment of subterranean formations [Right-click to bookmark this link] | Status | The application has been refused Status updated on 19.10.1988 Database last updated on 16.07.2024 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states HALLIBURTON COMPANY P.O. Drawer 1431 Duncan Oklahoma 73536 / US | [N/P] |
| Former [1986/04] | For all designated states HALLIBURTON COMPANY P.O. Drawer 1431 Duncan Oklahoma 73536 / US | Inventor(s) | 01 /
Penny, Glenn Stanley 2115 Westbriar Duncan Oklahoma 73533 / US | [1986/04] | Representative(s) | Wain, Christopher Paul, et al A.A. Thornton & Co. 235 High Holborn London WC1V 7LE / GB | [N/P] |
| Former [1986/04] | Wain, Christopher Paul, et al A.A. THORNTON & CO. Northumberland House 303-306 High Holborn London WC1V 7LE / GB | Application number, filing date | 85305157.1 | 19.07.1985 | [1986/04] | Priority number, date | US19840632770 | 20.07.1984 Original published format: US 632770 | [1986/04] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0169074 | Date: | 22.01.1986 | Language: | EN | [1986/04] | Type: | A3 Search report | No.: | EP0169074 | Date: | 25.06.1986 | Language: | EN | [1986/26] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 09.05.1986 | Classification | IPC: | C09K17/00, E21B43/25, C09K7/02, C08K5/00 | [1986/22] | CPC: |
C09K8/887 (EP,US);
C09K17/18 (EP,US);
C09K8/12 (EP,US);
Y10S507/922 (EP,US);
Y10S516/05 (EP,US)
|
| Former IPC [1986/04] | C09K17/00 | Designated contracting states | AT, DE, FR, GB, IT, NL [1986/04] | Title | German: | Behandlung von unterirdischen Formationen | [1986/04] | English: | Treatment of subterranean formations | [1986/04] | French: | Traitement de formations souterraines | [1986/04] | File destroyed: | 16.08.1994 | Examination procedure | 31.07.1986 | Examination requested [1986/41] | 20.01.1988 | Despatch of communication of intention to grant (Approval: ) | 08.07.1988 | Despatch of communication that the application is refused, reason: formalities examination [1988/49] | 18.07.1988 | Application refused, date of legal effect [1988/49] | Fees paid | Renewal fee | 07.07.1987 | Renewal fee patent year 03 | 13.07.1988 | 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]US4460751 (HANLON DAVID J [US], et al); | [YP]US4477360 (ALMOND STEPHEN W [US]) |