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Extract from the Register of European Patents

EP About this file: EP0502052

EP0502052 - A PROCESS FOR THE PREPARATION OF COOKING LIQUORS HAVING HIGH SULPHIDITY FOR SULPHATE PULP COOKING [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  05.08.1995
Database last updated on 02.09.2024
Most recent event   Tooltip05.08.1995No opposition filed within time limitpublished on 27.09.1995 [1995/39]
Applicant(s)For:SE 
EKA NOBEL AB
S-445 01 Bohus / SE
For:DE  ES  FR  SE  AT 
CHEMREC AKTIEBOLAG
P.O. Box 1033
S-651 15 Karlstad / SE
[1993/13]
Former [1993/09]For:SE 
EKA NOBEL AB
S-445 01 Bohus / SE
For:DE  ES  FR  AT 
CHEMREC AKTIEBOLAG
P.O. Box 1033
S-651 15 Karlstad / SE
Former [1992/37]For all designated states
EKA NOBEL AB
S-445 01 Bohus / SE
For all designated states
CHEMREC AKTIEBOLAG
P O Box 44
S-182 11 Danderyd / SE
Inventor(s)01 / HEDBLOM, Mats-Olov
Mansbovägen 11
S-774 00 Avesta / SE
02 / LINDBERG, Hans
Drottningholmsvägen 5
S-112 42 Stockholm / SE
[1992/37]
Representative(s)Perneborg, Henry T., et al
UPPSALA PATENTBYRA
P.O. Box 9013
750 09 Uppsala / SE
[N/P]
Former [1992/37]Perneborg, Henry T., et al
UPPSALA PATENTBYRA, P.O. Box 9013
S-750 09 Uppsala / SE
Application number, filing date90917424.521.11.1990
[1992/37]
WO1990SE00751
Priority number, dateSE1989000395323.11.1989         Original published format: SE 8903953
[1992/37]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9108337
Date:13.06.1991
Language:EN
[1991/13]
Type: A1 Application with search report 
No.:EP0502052
Date:09.09.1992
Language:EN
The application published by WIPO in one of the EPO official languages on 13.06.1991 takes the place of the publication of the European patent application.
[1992/37]
Type: B1 Patent specification 
No.:EP0502052
Date:05.10.1994
Language:EN
[1994/40]
Search report(s)International search report - published on:SE13.06.1991
ClassificationIPC:D21C11/04
[1992/37]
CPC:
D21H17/00 (EP); D21C11/04 (EP)
Designated contracting statesAT,   DE,   ES,   FR,   SE [1992/37]
TitleGerman:VERFAHREN ZUR HERSTELLUNG VON AUFSCHLUSSLÖSUNGEN MIT HOHER SULFIDITÄT FÜR DAS KOCHEN VON SULFATPULPE[1992/37]
English:A PROCESS FOR THE PREPARATION OF COOKING LIQUORS HAVING HIGH SULPHIDITY FOR SULPHATE PULP COOKING[1992/37]
French:PROCEDE DE PREPARATION DE LIQUEURS DE CUISSON DE SULFIDITE ELEVEE POUR LA CUISSON DE PATE A PAPIER AU SULFATE[1992/37]
Entry into regional phase21.05.1992National basic fee paid 
21.05.1992Designation fee(s) paid 
20.05.1992Examination fee paid 
Examination procedure07.06.1991Request for preliminary examination filed
International Preliminary Examining Authority: DE
22.05.1992Examination requested  [1992/37]
08.06.1993Despatch of a communication from the examining division (Time limit: M04)
25.09.1993Reply to a communication from the examining division
18.03.1994Despatch of communication of intention to grant (Approval: Yes)
08.04.1994Communication of intention to grant the patent
05.07.1994Fee for grant paid
05.07.1994Fee for publishing/printing paid
Opposition(s)06.07.1995No opposition filed within time limit [1995/39]
Fees paidRenewal fee
20.05.1992Renewal fee patent year 03
15.09.1993Renewal fee patent year 04
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Cited inInternational search[A]US4098639  (NOREUS STURE ERIK OLOF, et al);
 [A]US4710269  (SANTEN SVEN [SE], et al)
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.