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Extract from the Register of European Patents

EP About this file: EP0490197

EP0490197 - Azulensquaric acid dyes [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  02.06.1992
Database last updated on 14.09.2024
Most recent event   Tooltip02.06.1992Withdrawal of applicationpublished on 22.07.1992 [1992/30]
Applicant(s)For all designated states
BASF Aktiengesellschaft
Carl-Bosch-Strasse 38
67063 Ludwigshafen / DE
[N/P]
Former [1992/25]For all designated states
BASF Aktiengesellschaft
Carl-Bosch-Strasse 38
D-67063 Ludwigshafen / DE
Inventor(s)01 / Schmitt, Michael, Dr.
Freudenbergstrasse 18
W-6940 Weinheim / DE
02 / Albert, Bernhard, Dr.
Rietburgstrasse 13
W-6701 Maxdorf / DE
03 / Brosius, Sibylle, Dr.
Cordovastrasse 29
W-6700 Ludwigshafen / DE
04 / Schomann, Klaus Dieter, Dr.
Kopernikusstrasse 47
W-6700 Ludwigshafen / DE
05 / Kuppelmaier, Harald, Dr.
In den Bannzaeunen 17
W-6701 Goennheim / DE
[1992/25]
Application number, filing date91120612.629.11.1991
[1992/25]
Priority number, dateDE1990403943711.12.1990         Original published format: DE 4039437
[1992/25]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0490197
Date:17.06.1992
Language:DE
[1992/25]
Search report(s)(Supplementary) European search report - dispatched on:EP10.04.1992
ClassificationIPC:C09B57/00, G11B7/24, C07C253/30
[1992/25]
CPC:
C09B57/007 (EP)
Designated contracting statesCH,   DE,   FR,   GB,   IT,   LI [1992/25]
TitleGerman:Azulenquadratsäurefarbstoffe[1992/25]
English:Azulensquaric acid dyes[1992/25]
French:Colorants d'acide azulène squarique[1992/25]
File destroyed:17.02.2000
Examination procedure22.05.1992Application withdrawn by applicant  [1992/30]
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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[AD]EP0310080
 [A]  - CHEMISCHE BERICHTE. Bd. 100, Nr. 2, 1967WEINHEIM DE Seiten 375 - 382; SCHOLZ ET AL: 'Ueber die Darstellung des 4-Styryl-azulens .....'
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.