Extract from the Register of European Patents

EP About this file: EP0228397

EP0228397 - PROCESS FOR PRODUCING CONCENTRATED EMULSION POLYMERS [Right-click to bookmark this link]
StatusOpposition rejected
Status updated on  06.08.1993
Database last updated on 19.03.2026
Most recent event   Tooltip05.10.2005Change: Appeal number 
Applicant(s)For all designated states
Chemische Fabrik Stockhausen GmbH
Bäkerpfad 25
47805 Krefeld / DE
[N/P]
Former [1987/29]For all designated states
Chemische Fabrik Stockhausen GmbH
Bäkerpfad 25
D-47805 Krefeld / DE
Inventor(s)01 / HÜBNER, Wolfgang
Möhlenring 61
D-4152 Kempen 1 / DE
02 / SCHROERS, Otto
Dohrhofsweg 1
D-4150 Krefeld / DE
[1987/29]
Representative(s)Klöpsch, Gerald
Boehmert & Boehmert
Anwaltspartnerschaft mbB
Pettenkoferstrasse 22
80336 München / DE
[N/P]
Former [1987/29]Klöpsch, Gerald, Dr.-Ing. Patentanwalt
An Gross St. Martin 6
D-50667 Köln / DE
Application number, filing date86903379.519.06.1986
[1987/29]
WO1986EP00362
Priority number, dateDE1985352241922.06.1985         Original published format: DE 3522419
[1987/29]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report
No.:WO8607596
Date:31.12.1986
Language:DE
[1986/28]
Type: A1 Application with search report 
No.:EP0228397
Date:15.07.1987
Language:DE
The application published by WIPO in one of the EPO official languages on 31.12.1986 takes the place of the publication of the European patent application.
[1987/29]
Type: B1 Patent specification 
No.:EP0228397
Date:06.09.1989
Language:DE
[1989/36]
Search report(s)International search report - published on:EP31.12.1986
ClassificationIPC:C08F2/32
[1987/29]
CPC:
C08F2/32 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   FR,   GB,   IT,   LI,   NL,   SE [1987/29]
TitleGerman:VERFAHREN ZUR HERSTELLUNG VON KONZENTRIERTEN EMULSIONSPOLYMERISATEN[1987/29]
English:PROCESS FOR PRODUCING CONCENTRATED EMULSION POLYMERS[1987/29]
French:PROCEDE DE PRODUCTION DE POLYMERES CONCENTRES D'EMULSIONS[1987/29]
Entry into regional phase18.02.1987National basic fee paid 
18.02.1987Designation fee(s) paid 
18.02.1987Examination fee paid 
Examination procedure18.02.1987Examination requested  [1987/29]
14.07.1988Despatch of a communication from the examining division (Time limit: M02)
22.09.1988Reply to a communication from the examining division
04.01.1989Despatch of communication of intention to grant (Approval: Yes)
09.03.1989Communication of intention to grant the patent
02.06.1989Fee for grant paid
02.06.1989Fee for publishing/printing paid
Opposition(s)Opponent(s)01  06.06.1990  09.07.1990  ADMISSIBLE
SNF Floerger
41, Rue Jean-Huss
F-42028 Saint-Etienne Cedex / FR
Opponent's representative
Maiwald, Walter
Strasse, Maiwald, Meys, Stach & Vonnemann
Postfach 90 09 54
D-81509 München / DE
 [N/P]
Former [1991/49]
Opponent(s)01  06.06.1990  09.07.1990  ADMISSIBLE
SNF Floerger
41, Rue Jean-Huss
F-42028 Saint-Etienne Cedex / FR
Opponent's representative
Maiwald, Walter, Dr.
Strasse, Maiwald, Meys, Stach & Vonnemann, Postfach 90 09 54
D-81509 München / DE
Former [1990/31]
Opponent(s)01  06.06.1990   
SNF Floerger
41, Rue Jean-Huss
F-42028 Saint-Etienne Cedex / FR
Opponent's representative
Eisenführ, Speiser & Partner
Martinistrasse 24
D-28195 Bremen / DE
11.07.1990Invitation to proprietor to file observations on the notice of opposition
22.11.1990Reply of patent proprietor to notice(s) of opposition
06.12.1990Communication of observations of patent proprietor (Time limit: M02)
04.02.1991Reply of parties involved to observations of patent proprietor
04.02.1992Date of oral proceedings
26.02.1992Despatch of minutes of oral proceedings
26.02.1992Date of despatch of rejection of opposition
06.08.1993Legal effect of rejection of opposition [1993/39]
Appeal following opposition24.04.1992Appeal received No.  T0370/92
26.06.1992Statement of grounds filed
28.05.1993Result of appeal procedure: appeal of the opponent was rejected
Fees paidRenewal fee
24.05.1988Renewal fee patent year 03
19.05.1989Renewal fee patent year 04
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Cited inInternational search[X] JP77111986  
 [X]   CHEMICAL ABSTRACTS, Vol. 88, No. 14, 3 April 1978, Columbus, Ohio (US) see page 29, Abstract 90451s, & JP, A, 77111986 (Sumitomo) 20 September 1977 [X]
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