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Extract from the Register of European Patents

EP About this file: EP0074590

EP0074590 - Preparations of optical brighteners [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  29.03.1988
Database last updated on 14.09.2024
Most recent event   Tooltip29.03.1988No opposition filed within time limitpublished on 18.05.1988 [1988/20]
Applicant(s)For all designated states
BAYER AG
51368 Leverkusen / DE
[N/P]
Former [1983/12]For all designated states
BAYER AG
D-51368 Leverkusen / DE
Inventor(s)01 / Koll, Jochen, Ing. grad.
Am Telegraf 40
D-5068 Odenthal 3 / DE
02 / Theidel, Hans, Dr.
Tempelhoferstrasse 66
D-5090 Leverkusen 1 / DE
03 / Mölls, Hans-Heinz, Dr.
Max Beckmann Strasse 29
D-5090 Leverkusen 1 / DE
[1983/12]
Application number, filing date82108168.404.09.1982
[1983/12]
Priority number, dateDE1981313680916.09.1981         Original published format: DE 3136809
[1983/12]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0074590
Date:23.03.1983
Language:DE
[1983/12]
Type: A3 Search report 
No.:EP0074590
Date:16.05.1984
Language:DE
[1984/20]
Type: B1 Patent specification 
No.:EP0074590
Date:27.05.1987
Language:DE
[1987/22]
Search report(s)(Supplementary) European search report - dispatched on:EP15.03.1984
ClassificationIPC:D06L3/12
[1983/12]
CPC:
D06L4/664 (EP)
Designated contracting statesCH,   DE,   FR,   GB,   IT,   LI [1983/12]
TitleGerman:Präparationen optischer Aufheller[1983/12]
English:Preparations of optical brighteners[1983/12]
French:Préparation d'azurants optiques[1983/12]
Examination procedure04.09.1982Examination requested  [1983/12]
12.03.1985Despatch of a communication from the examining division (Time limit: M04)
22.05.1985Reply to a communication from the examining division
13.08.1985Despatch of a communication from the examining division (Time limit: M03)
27.09.1985Reply to a communication from the examining division
16.01.1986Despatch of a communication from the examining division (Time limit: M03)
23.01.1986Reply to a communication from the examining division
16.04.1986Despatch of a communication from the examining division (Time limit: M02)
12.05.1986Reply to a communication from the examining division
08.08.1986Despatch of communication of intention to grant (Approval: )
24.11.1986Communication of intention to grant the patent
28.11.1986Fee for grant paid
28.11.1986Fee for publishing/printing paid
Opposition(s)01.03.1988No opposition filed within time limit [1988/20]
Fees paidRenewal fee
22.08.1984Renewal fee patent year 03
20.08.1985Renewal fee patent year 04
22.08.1986Renewal fee patent year 05
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Documents cited:Search[A]DE2257945  (BASF AG);
 [A]FR2243994  (CIBA GEIGY AG [CH]);
 [A]DE1921277  (DU PONT)
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.