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Extract from the Register of European Patents

EP About this file: EP0003752

EP0003752 - Process for preparing molecular-sieve-containing grains having good mechanical solidity, the grains manufactured by this process and their use [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.09.2016
Database last updated on 12.07.2024
Most recent event   Tooltip14.09.2016No opposition filed within time limit 
Applicant(s)For all designated states
Kali-Chemie Aktiengesellschaft
Hans-Böckler-Allee 20
D-30173 Hannover / DE
[N/P]
Inventor(s)01 / Derleth, Helmut, Dr.rer.nat.
Grosse Drakenburger Strasse 79
D-3070 Nienburg / DE
02 / Sauer, Günter
Prinzenstrasse 51
D-3070 Nienburg / DE
03 / Bretz, Karl-Heinz
Berliner Ring 202
D-3070 Nienburg / DE
[N/P]
Application number, filing date79100214.025.01.1979
Priority number, dateDE1978280554610.02.1978         Original published format: DE 2805546
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0003752
Date:05.09.1979
Language:DE
[N/P]
Type: B1 Patent specification 
No.:EP0003752
Date:18.03.1981
Language:DE
[1981/11]
Search report(s)(Supplementary) European search report - dispatched on:EP19.06.1979
ClassificationIPC:C01B33/28, B01J29/06, B01D15/04, B01J20/16
[1981/11]
CPC:
B01J20/186 (EP,US); B01J20/183 (EP,US)
Former IPC [1981/11]C01B33/28, B01J29/06, B01D15/04
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LU,   NL,   SE 
TitleGerman:Verfahren zur Herstellung von Molekularsieb enthaltenden Granulaten guter mechanischer Festigkeit, die nach diesem Verfahren hergestellten Granulate und deren Verwendung
English:Process for preparing molecular-sieve-containing grains having good mechanical solidity, the grains manufactured by this process and their use
French:Procédé pour la préparation de grains ayant une bonne résistance mécanique et contenant des tamis moléculaires, les grains préparés ainsi et leur utilisation
Examination procedure06.12.1979Examination requested  [1980/05]
18.03.1980Despatch of a communication from the examining division (Time limit: M03)
11.06.1980Reply to a communication from the examining division
20.08.1980Despatch of communication of intention to grant (Approval: )
24.09.1980Communication of intention to grant the patent
01.10.1980Fee for grant paid
01.10.1980Fee for publishing/printing paid
Opposition(s)02.03.1982No opposition filed within time limit [ N /P ]
Fees paidRenewal fee
19.12.1980Renewal fee patent year 03
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Documents cited:SearchDD53052  [ ];
 DE1192164  [ ];
 DE1165562  [ ] (BAYER AG);
 GB998262  [ ] (SOCONY MOBIL OIL CO INC);
 FR1546121  [ ] (HERRMANN FA GEB);
 DE2008444  [ ] (TEXACO DEVELOPMENT CORP);
 US3714072  [ ] (MAAT H, et al);
 US4022714  [ ] (ELLIOTT JR CURTIS HOMER)
    [ ] - CHEMICAL ABSTRACTS, Vol. 88, Nr. 4, 23. Januar 1978, Zusammenfassung Nr. 28244y, Columbus, Ohio, USA, EJSYMONT JAN et al.: "Effect of the composition of a binding agent having the character of sodium-calcium and sodium-magnesium glass on the properties of granulated X-type zeolite. Determination of the crushing strength of catalysts", Seite 322, linke Spalte & Zesz. Nauk. Uniw. Jagiellon, Pr. Chem. 1977, 22163-85. * Zusammenfassung *
    [ ] - CHEMICAL ABSTRACTS, Vol. 88, Nr. 2, 1. September 1978, Zusammenfassung Nr. 12333r, Columbus, Ohio, USA, EJSYMONT JAN et al.: "The formation of zeolite 13X with binding agents composed of sodium-calcium and sodium-magnesium glasses", Seite 333, rechte Spalte & Zesz. Nauk. Uniw. Jagiellon, Pr. Chem. 1976, 21325-39.
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.