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Extract from the Register of European Patents

EP About this file: EP0427040

EP0427040 - Paper-coating compositions comprising whitening agents [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  15.06.1992
Database last updated on 19.10.2024
Most recent event   Tooltip15.06.1992Withdrawal of applicationpublished on 05.08.1992 [1992/32]
Applicant(s)For all designated states
BAYER AG
51368 Leverkusen / DE
[N/P]
Former [1991/20]For all designated states
BAYER AG
D-51368 Leverkusen / DE
Inventor(s)01 / Seng, Florin, Dr.
Am Katterbach 46
W-5060 Bergisch Gladbach 2 / DE
02 / Kysela, Ernst, Dr.
Virchowstrasse 14
W-5060 Bergisch Gladbach 1 / DE
03 / König, Joachim, Dr.
Auf dem Broich 25
W-5068 Odenthal / DE
04 / Schuffenhauer, Erhard, Dipl.-Ing.
Friedrich-Bayer-Strasse 13
W-5090 Leverkusen 1 / DE
05 / Bieber, Werner
Gladbacher Weg 13
W-5653 Leichlingen 1 / DE
06 / Hunke, Bernhardt
Am Burghart 15
W-5202 Hennef/Sieg / DE
[1991/20]
Application number, filing date90120276.223.10.1990
[1991/20]
Priority number, dateDE1989393679304.11.1989         Original published format: DE 3936793
[1991/20]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0427040
Date:15.05.1991
Language:DE
[1991/20]
Search report(s)(Supplementary) European search report - dispatched on:EP04.03.1991
ClassificationIPC:D21H21/30, C07C43/225, C07C25/24, C07C15/58, C07C317/22, C07C317/14, C07C323/09
[1991/20]
CPC:
C07C43/225 (EP); C07C25/24 (EP); D21H21/30 (EP)
Designated contracting statesAT,   CH,   DE,   FR,   GB,   IT,   LI,   SE [1991/20]
TitleGerman:Weisstönerhaltige Papierstreichmassen[1991/20]
English:Paper-coating compositions comprising whitening agents[1991/20]
French:Compositions de couchage pour papier comprenant des agents de blanchiment[1991/20]
File destroyed:12.06.1999
Examination procedure23.10.1990Examination requested  [1991/20]
09.06.1992Application withdrawn by applicant  [1992/32]
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Patent Court		 See the Register of the Unified Patent Court for opt-out data
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[X]CH411329  ;
 [X]FR2214686  ;
 [X]US4158099  ;
 [A]DE2535102  ;
 [A]EP0144640  ;
 [A]EP0065125  ;
 [A]EP0302441
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.