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Extract from the Register of European Patents

EP About this file: EP0201068

EP0201068 - Process for the production of needle-shaped ferromagnetic metallic iron oxides principally containing iron [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  30.01.1992
Database last updated on 16.09.2024
Most recent event   Tooltip30.01.1992No opposition filed within time limitpublished on 18.03.1992 [1992/12]
Applicant(s)For all designated states
BASF Aktiengesellschaft
Carl-Bosch-Strasse 38
67063 Ludwigshafen / DE
[N/P]
Former [1986/46]For all designated states
BASF Aktiengesellschaft
Carl-Bosch-Strasse 38
D-67063 Ludwigshafen / DE
Inventor(s)01 / Schwab, Ekkehard, Dr.
Maxburgstrasse 1
D-6730 Neustadt / DE
02 / Steck, Werner, Dr.
Auerstrasse 4
D-6700 Ludwigshafen / DE
03 / Rudolf, Peter, Dr.
Nibelungenweg 14
D-6701 Maxdorf / DE
04 / Vaeth, Guenter
Woogstrasse 35
D-6703 Limburgerhof / DE
05 / Jakusch, Helmut, Dr.
Lorscher Ring 6 c
D-6710 Frankenthal / DE
06 / Kovacs, Jenoe, Dr.
Kantstrasse 9
D-6717 Hessheim / DE
[1986/46]
Application number, filing date86106090.303.05.1986
[1986/46]
Priority number, dateDE1985351688410.05.1985         Original published format: DE 3516884
[1986/46]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0201068
Date:04.02.1987
Language:DE
[1987/06]
Type: A3 Search report 
No.:EP0201068
Date:05.07.1989
Language:DE
[1989/27]
Type: B1 Patent specification 
No.:EP0201068
Date:27.03.1991
Language:DE
[1991/13]
Type: B1 RE Reissue of patent specification
No.:EP0201068
Date:19.08.1991
[1991/41]
Search report(s)(Supplementary) European search report - dispatched on:EP16.05.1989
ClassificationIPC:H01F1/06, B22F9/22, B22F1/02
[1986/46]
CPC:
G11B5/70615 (EP,US)
Designated contracting statesDE,   FR,   GB,   NL [1986/46]
TitleGerman:Verfahren zur Herstellung nadelförmiger, im wesentlichen aus Eisen bestehender ferromagnetischer Metallteilchen[1986/46]
English:Process for the production of needle-shaped ferromagnetic metallic iron oxides principally containing iron[1986/46]
French:Procédé pour la fabrication de particules métalliques ferromagnétiques aciculaires contenant principalement du fer[1986/46]
Examination procedure01.06.1989Examination requested  [1989/31]
29.08.1990Despatch of communication of intention to grant (Approval: Yes)
27.09.1990Communication of intention to grant the patent
20.12.1990Fee for grant paid
20.12.1990Fee for publishing/printing paid
Opposition(s)28.12.1991No opposition filed within time limit [1992/12]
Fees paidRenewal fee
19.05.1988Renewal fee patent year 03
24.05.1989Renewal fee patent year 04
16.05.1990Renewal fee patent year 05
02.01.1991Renewal fee patent year 06
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Documents cited:Search[A]EP0015485  (BAYER AG [DE]);
 [A]US4305753  (FRENCH JAMES E)
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.