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Extract from the Register of European Patents

EP About this file: EP0024702

EP0024702 - Disazo compounds, process for their preparation and their use as dyestuffs [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.09.2016
Database last updated on 13.09.2024
Most recent event   Tooltip14.09.2016No opposition filed within time limit 
Applicant(s)For all designated states
HOECHST AKTIENGESELLSCHAFT
65926 Frankfurt am Main / DE
[N/P]
Former [1983/07]For all designated states
HOECHST AKTIENGESELLSCHAFT
D-65926 Frankfurt am Main / DE
Former [1981/10]For all designated states
HOECHST AKTIENGESELLSCHAFT
Postfach 80 03 20
D-65926 Frankfurt / DE
Inventor(s)01 / Kühne, Rudolf, Dr.
Oestricher Weg 27
D-6000 Frankfurt am Main 71 / DE
02 / Hamal, Heinrich
Am Kalkofen 39
D-6237 Liederbach / DE
[1981/10]
Application number, filing date80104999.022.08.1980
[1981/10]
Priority number, dateDE1979293563804.09.1979         Original published format: DE 2935638
[1981/10]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0024702
Date:11.03.1981
Language:DE
[1981/10]
Type: A3 Search report 
No.:EP0024702
Date:18.03.1981
Language:DE
[1981/11]
Type: B1 Patent specification 
No.:EP0024702
Date:16.02.1983
Language:DE
[1983/07]
Search report(s)(Supplementary) European search report - dispatched on:EP14.01.1981
ClassificationIPC:C09B35/22, D06P1/18, C08K5/23, D21H1/46
[1981/10]
CPC:
C09B35/22 (EP,US); Y10S534/01 (EP,US)
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LI,   NL [1981/10]
TitleGerman:Disazoverbindungen, Verfahren zu ihrer Herstellung und ihre Verwendung als Farbmittel[1981/10]
English:Disazo compounds, process for their preparation and their use as dyestuffs[1981/10]
French:Composés disazoiques, procédé pour leur préparation et leur utilisation comme colorants[1981/10]
Examination procedure10.09.1981Examination requested  [1981/46]
10.05.1982Despatch of communication of intention to grant (Approval: )
30.07.1982Communication of intention to grant the patent
25.10.1982Fee for grant paid
25.10.1982Fee for publishing/printing paid
Opposition(s)17.11.1983No opposition filed within time limit [ N /P ]
Fees paidRenewal fee
08.07.1982Renewal fee patent year 03
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Documents cited:Search[D]DE2658396  (HOECHST AG)
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.