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EP0421249
European procedure
Extract from the Register of European Patents
EP About this file: EP0421249
| EP0421249 - High viscosity magnetic fluids [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 26.01.1995 Database last updated on 02.09.2024 | Most recent event Tooltip | 26.01.1995 | No opposition filed within time limit | published on 15.03.1995 [1995/11] | Applicant(s) | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 67063 Ludwigshafen / DE | [N/P] |
| Former [1991/15] | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 D-67063 Ludwigshafen / DE | Inventor(s) | 01 /
Mair, Gunther, Dr. Corneliusstrasse 15 D-6800 Mannheim 1 / DE | 02 /
Feser, Rainer, Dr. Colgensteiner Weg 25 D-6718 Gruenstadt / DE | [1991/15] | Application number, filing date | 90118427.5 | 26.09.1990 | [1991/15] | Priority number, date | DE19893933210 | 05.10.1989 Original published format: DE 3933210 | [1991/15] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0421249 | Date: | 10.04.1991 | Language: | DE | [1991/15] | Type: | B1 Patent specification | No.: | EP0421249 | Date: | 23.03.1994 | Language: | DE | [1994/12] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 19.02.1991 | Classification | IPC: | H01F1/37 | [1991/15] | CPC: |
H01F1/44 (EP,US);
F16C33/1035 (EP,US)
| Designated contracting states | DE, FR, GB, NL [1991/15] | Title | German: | Hochviskose magnetische Flüssigkeiten | [1991/15] | English: | High viscosity magnetic fluids | [1991/15] | French: | Fluides magnétiques à haute viscosité | [1991/15] | Examination procedure | 27.12.1990 | Examination requested [1991/15] | 10.03.1993 | Despatch of a communication from the examining division (Time limit: M04) | 21.06.1993 | Reply to a communication from the examining division | 24.08.1993 | Despatch of communication of intention to grant (Approval: Yes) | 22.09.1993 | Communication of intention to grant the patent | 16.11.1993 | Fee for grant paid | 16.11.1993 | Fee for publishing/printing paid | Opposition(s) | 24.12.1994 | No opposition filed within time limit [1995/11] | Fees paid | Renewal fee | 16.09.1992 | Renewal fee patent year 03 | 20.09.1993 | 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]JP01209704 ; | [A]JP01165104 ; | [YD]EP0249229 (BASF AG [DE]) | [Y] - PATENT ABSTRACTS OF JAPAN vol. 13, no. 518 (E-848)(3866) 20 November 1989, & JP-A-01 209704 (NOK CORP) 23 August 1989,, & JP01209704 A 19890823 | [A] - PATENT ABSTRACTS OF JAPAN vol. 13, no. 437 (E-826)(3785) 29 September 1989, & JP-A-01 165104 (K.NAKATSUKA) 29 Juni 1989,, & JP01165104 A 19890929 |