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Extract from the Register of European Patents

EP About this file: EP0395792

EP0395792 - Procedure for the bleaching of pulp [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  09.08.1996
Database last updated on 03.01.2025
Most recent event   Tooltip30.11.2007Lapse of the patent in a contracting state
New state(s): GR		published on 02.01.2008  [2008/01]
Applicant(s)For all designated states
ENSO-GUTZEIT OY
Kanavaranta 1
FIN-00160 Helsinki / FI
[N/P]
Former [1990/45]For all designated states
ENSO-GUTZEIT OY
Kanavaranta 1
SF-00160 Helsinki / FI
Inventor(s)01 / Vaheri, Marja
Lystimäenkuja 1 A
SF-02210 Espoo / FI
02 / Miikki, Kari
Hilkankatu 10
SF-55100 Imatra / FI
03 / Jokela, Veikko
Rantatie
SF-55330 Tiuruniemi / FI
04 / Ruohoniemi, Kimmo
Harakantie 586 as
SF-55800 Imatra / FI
[1990/45]
Representative(s)Weitzel, Wolfgang
Dr. Weitzel & Partner
Patent- und Rechtsanwälte mbB
Friedenstrasse 10
89522 Heidenheim / DE
[N/P]
Former [1990/45]Weitzel, Wolfgang, Dr.-Ing.
Friedenstrasse 10
D-89522 Heidenheim / DE
Application number, filing date89117233.018.09.1989
[1990/45]
Priority number, dateFI1989000215104.05.1989         Original published format: FI 892151
[1990/45]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0395792
Date:07.11.1990
Language:EN
[1990/45]
Type: A3 Search report 
No.:EP0395792
Date:16.01.1991
Language:EN
[1991/03]
Type: B1 Patent specification 
No.:EP0395792
Date:14.07.1993
Language:EN
[1993/28]
Search report(s)(Supplementary) European search report - dispatched on:EP26.11.1990
ClassificationIPC:D21C9/10, D21C9/147
[1991/06]
CPC:
D21C9/144 (EP); D21C5/005 (EP); D21C9/1057 (EP);
D21C9/147 (EP)
Former IPC [1990/45]D21C9/10
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   GR,   IT,   LI,   NL,   SE [1990/45]
TitleGerman:Verfahren zum Bleichen von Zellstoff[1990/45]
English:Procedure for the bleaching of pulp[1990/45]
French:Procédé de blanchiment de pâte[1990/45]
Examination procedure15.04.1991Examination requested  [1991/24]
10.12.1991Despatch of a communication from the examining division (Time limit: M06)
19.05.1992Reply to a communication from the examining division
03.08.1992Despatch of a communication from the examining division (Time limit: M04)
25.08.1992Reply to a communication from the examining division
03.12.1992Despatch of communication of intention to grant (Approval: Yes)
28.12.1992Communication of intention to grant the patent
22.02.1993Fee for grant paid
22.02.1993Fee for publishing/printing paid
Opposition(s)Opponent(s)01  12.04.1994  08.06.1994  ADMISSIBLE
SANDOZ LTD.
35, Lichtstrasse
CH-4002 Basel / CH
 02  13.04.1994  29.08.1994  ADMISSIBLE
Call, Hans-Peter, Dr.
Heinsberger Str. 14 a
D-52531 Uebach-Palenberg / DE
Opponent's representative
Fitzner, Uwe
Fitzner & Frese PartGmbB
Hauser Ring 10
40878 Ratingen / DE
 03  14.04.1994  29.08.1994  ADMISSIBLE
Gist-brocades NV
Wateringseweg 1 P.O. Box 1
NL-2600 MA Delft / NL
Opponent's representative
Schuller, Cornelis
Gist-Brocades B.V.
Patents & Trademarks Department
Postbus 1
2600 MA Delft / NL
 [N/P]
Former [1994/25]
Opponent(s)01  12.04.1994  08.06.1994  ADMISSIBLE
SANDOZ LTD.
35, Lichtstrasse
CH-4002 Basel / CH
 02  13.04.1994  29.08.1994  ADMISSIBLE
Call, Hans-Peter, Dr.
Heinsberger Str. 14 a
D-52531 Uebach-Palenberg / DE
Opponent's representative
Fitzner, Uwe, Dr.
Dres. Fitzner & Fitzner Rechts- und Patentanwälte Konrad-Adenauer-Platz 17
D-40852 Ratingen-Lintorf / DE
 03  14.04.1994  29.08.1994  ADMISSIBLE
Gist-brocades NV
Wateringseweg 1 P.O. Box 1
NL-2600 MA Delft / NL
Opponent's representative
Schüller, Cornelis, Dr.
Gist-Brocades B.V., Patents and Trademarks Department, Wateringseweg 1, P.O. Box 1
NL-2600 MA Delft / NL
Former [1994/24]
Opponent(s)01  12.04.1994  08.06.1994  ADMISSIBLE
SANDOZ LTD.
35, Lichtstrasse
CH-4002 Basel / CH
 02  13.04.1994   
Call, Hans-Peter, Dr.
Heinsberger Str. 14 a
D-52531 Uebach-Palenberg / DE
 03  14.04.1994  29.08.1994  ADMISSIBLE
Gist-brocades NV
Wateringseweg 1 P.O. Box 1
NL-2600 MA Delft / NL
Opponent's representative
Schüller, Cornelis, Dr.
Gist-Brocades B.V., Patents and Trademarks Department, Wateringseweg 1, P.O. Box 1
NL-2600 MA Delft / NL
Former [1994/23]
Opponent(s)01  12.04.1994  08.06.1994  ADMISSIBLE
SANDOZ LTD.
35, Lichtstrasse
CH-4002 Basel / CH
 02  13.04.1994   
Call, Hans-Peter, Dr.
Heinsberger Str. 14 a
D-52531 Uebach-Palenberg / DE
Former [1994/22]
Opponent(s)01  12.04.1994  08.06.1994  ADMISSIBLE
SANDOZ LTD.
35, Lichtstrasse
CH-4002 Basel / CH
02.09.1994Invitation to proprietor to file observations on the notice of opposition
20.12.1994Reply of patent proprietor to notice(s) of opposition
09.01.1995Communication of observations of patent proprietor (Time limit: M04)
11.05.1995Reply of parties involved to observations of patent proprietor
23.06.1995Despatch of a communication from the opposition division (Time limit: M03)
03.05.1996Despatch of communication that the patent will be revoked
13.05.1996Legal effect of revocation of patent [1996/39]
Fees paidRenewal fee
11.09.1991Renewal fee patent year 03
18.09.1992Renewal fee patent year 04
Opt-out from the exclusive  Tooltip
competence of the Unified
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.
Lapses during opposition  TooltipCH14.07.1993
DE14.07.1993
IT14.07.1993
LI14.07.1993
NL14.07.1993
GB14.10.1993
GR15.10.1993
[2004/51]
Former [1999/42]CH14.07.1993
DE14.07.1993
IT14.07.1993
LI14.07.1993
NL14.07.1993
GB14.10.1993
Former [1994/49]CH14.07.1993
DE14.07.1993
LI14.07.1993
NL14.07.1993
GB14.10.1993
Former [1994/24]CH14.07.1993
DE14.07.1993
LI14.07.1993
NL14.07.1993
Former [1994/22]CH14.07.1993
DE14.07.1993
LI14.07.1993
Former [1994/04]CH14.07.1993
LI14.07.1993
Documents cited:Search[A]  - STFI/SPCI, THIRD INTERNATIONAL CONFERENCE BIOTECHNOLOGY IN THE PULP & PAPER INDUSTRY, Stockholm, 16th - 19th June 1986, pages 67-69; L. VIIKARI et al.: "Bleaching with enzymes"
 [A]  - ABSTRACTS BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, vol. 59, no. 4, October 1988, page 431, abstract no. 4037, Appleton, US; A. KANTELINEN et al.: "Hemicellulases and their potential role in bleaching", & TAPPI INT. PULP BLEACHING CONF. (Orlando) PROCS.: 1-9 (June 5-9, 1988)
ExaminationWO8908738
 EP0383999
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.