-
EP0254342
European procedure
- EP About this file
- EP Legal status
- EP Federated register
- EP Event history
- EP Citations
- EP Patent family
- EP All documents
Extract from the Register of European Patents
EP About this file: EP0254342
| EP0254342 - Expandable cement composition [Right-click to bookmark this link] | Status | The application has been withdrawn Status updated on 11.09.1991 Database last updated on 18.11.2024 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states DOWELL SCHLUMBERGER INCORPORATED P.O.Box 4378 Houston Texas 77210 / US | [N/P] |
| Former [1988/04] | For all designated states DOWELL SCHLUMBERGER INCORPORATED P.O.Box 4378 Houston Texas 77210 / US | Inventor(s) | 01 /
Spangle, Lloyd B. 6108 S.W. Willow Road Claremore, OK / US | [1988/04] | Representative(s) | Richebourg, Michel François Schlumberger Dowell Dowell Patent and Licensing Deptartment 26 Rue de la Cavée 92142 Clamart Cedex / FR | [N/P] |
| Former [1988/04] | Richebourg, Michel François Schlumberger Dowell Dowell Patent and Licensing Dept. 26, rue de la Cavée F-92142 Clamart Cedex / FR | Application number, filing date | 87201260.4 | 03.07.1987 | [1988/04] | Priority number, date | US19860890672 | 25.07.1986 Original published format: US 890672 | [1988/04] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0254342 | Date: | 27.01.1988 | Language: | EN | [1988/04] | Type: | A3 Search report | No.: | EP0254342 | Date: | 11.10.1989 | Language: | EN | [1989/41] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 23.08.1989 | Classification | IPC: | C04B22/06, E21B33/14 | [1988/04] | CPC: |
C04B2/102 (EP,US);
C04B22/066 (EP,US);
C09K8/42 (EP,US);
C09K8/46 (EP,US);
C04B2111/34 (EP,US)
| C-Set: |
C04B22/066, C04B22/008 (EP,US)
| Designated contracting states | DE, FR, GB, IT, NL [1988/04] | Title | German: | Expansivzementzusammensetzung | [1988/04] | English: | Expandable cement composition | [1988/04] | French: | Composition de ciment expansive | [1988/04] | File destroyed: | 02.03.1998 | Examination procedure | 16.07.1988 | Examination requested [1988/37] | 03.04.1991 | Despatch of a communication from the examining division (Time limit: M04) | 08.08.1991 | Application withdrawn by applicant [1991/44] | Fees paid | Renewal fee | 07.07.1989 | Renewal fee patent year 03 | 30.06.1990 | Renewal fee patent year 04 | Penalty fee | Additional fee for renewal fee | 31.07.1991 | 05 M06 Not yet paid |
| 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]SU1046481 ; | [A]US3921717 (DANJUSHEVSKY SOLOMON ISAAKOVIC, et al); | [A]US4585743 (YAMAMOTO KOSEI [JP], et al) | [A] - SOVIET INVENTIONS ILLUSTRATED. Week 84, abstract no. 157508, classes H01,L02,Q49, 1 August 1984, Derwent Publications Ltd., London, GB; & SU-A-1046481 (MOSCOW GUBKIN PETROCHEM) 07-10-1983, & SU1046481 A 00000000 | [ADO] - 7TH INTERNATIONAL CONGRESS ON THE CHEMISTRY OF CEMENT. 1980, Paris, Vol. III, pages v6-v9; P.K. MEHTA et al.: "Magnesium oxide additive for producing selfstress in mass concrete". |