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Extract from the Register of European Patents

EP About this file: EP0049740

EP0049740 - Process for the continuous preparation of dialkylperoxydicarbonates [Right-click to bookmark this link]
StatusPatent maintained as amended
Status updated on  21.12.1994
Database last updated on 05.04.2025
Most recent event   Tooltip13.06.2008Change - opposition data/opponents data or that of the opponents representativepublished on 16.07.2008  [2008/29]
Applicant(s)For all designated states
Peroxid-Chemie GmbH
Dr.-Gustav-Adolf-Strasse 3
82049 Pullach / DE
[N/P]
Former [1982/16]For all designated states
Peroxid-Chemie GmbH
Dr.-Gustav-Adolf-Strasse 3
D-82049 Pullach / DE
Inventor(s)01 / Appel, Hans
Dr.-Gustav-Adolph-Strasse 8
D-8023 Höllriegelskreuth / DE
02 / Brossmann, Gottfried
Dr.-Gustav-Adolph-Strasse 10
D-8023 Höllriegelskreuth / DE
[1982/16]
Representative(s)Weickmann, Heinrich, et al
Weickmann & Weickmann Patentanwälte Postfach 86 08 20
81635 München / DE
[N/P]
Former [1984/31]Weickmann, Heinrich, Dipl.-Ing., et al
Patentanwälte H. Weickmann, Dr. K. Fincke F.A. Weickmann, B. Huber Dr. H. Liska, Dr. J. Prechtel, Dr. B. Böhm Postfach 86 08 20
D-81635 München / DE
Former [1982/16]Weickmann, Heinrich, Dipl.-Ing.
Patentanwälte Dipl.-Ing. H. Weickmann Dipl.-Phys.Dr. K. Fincke Dipl.-Ing. F.A. Weickmann Dipl.-Chem. B. Huber Dr.-Ing. H. Liska MÐhlstrasse 22
D-8000 München 86 / DE
Application number, filing date81105361.009.07.1981
[1982/16]
Priority number, dateDE1980303816409.10.1980         Original published format: DE 3038164
[1982/16]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0049740
Date:21.04.1982
Language:DE
[1982/16]
Type: B1 Patent specification 
No.:EP0049740
Date:22.02.1984
Language:DE
[1984/08]
Type: B2 New European patent specification 
No.:EP0049740
Date:08.02.1995
Language:DE
[1995/06]
Search report(s)(Supplementary) European search report - dispatched on:EP02.02.1982
ClassificationIPC:C07C409/34, C07C407/00
[1995/06]
CPC:
C07C407/00 (EP,US); C07C407/003 (EP,US)
C-Set:
C07C407/003, C07C409/32 (EP,US);
C07C407/00, C07C409/32 (US,EP)
Former IPC [1982/16]C07C179/14, C07C178/00
Designated contracting statesBE,   DE,   FR,   GB,   IT,   NL,   SE [1982/16]
TitleGerman:Verfahren zur kontinuierlichen Herstellung von Dialkylperoxydicarbonaten[1982/16]
English:Process for the continuous preparation of dialkylperoxydicarbonates[1982/16]
French:Procédé de préparation continue de dialcoyle peroxydicarbonates[1982/16]
Examination procedure12.03.1982Examination requested  [1982/36]
19.08.1982Despatch of a communication from the examining division (Time limit: M04)
28.10.1982Reply to a communication from the examining division
04.03.1983Despatch of a communication from the examining division (Time limit: M04)
06.04.1983Reply to a communication from the examining division
24.05.1983Despatch of communication of intention to grant (Approval: )
02.08.1983Communication of intention to grant the patent
21.09.1983Fee for grant paid
21.09.1983Fee for publishing/printing paid
Opposition(s)Opponent(s)01  20.11.1984  19.12.1984  ADMISSIBLE
Luperox GmbH
Denzinger Strasse 7
D-89312 Günzburg / DE
Opponent's representative
Abitz, Walter, et al, et al
Patentanwälte Abitz & Partner Postfach 86 01 09
81628 München / DE
 02  20.11.1984  19.12.1984  ADMISSIBLE
Akzo Nobel N.V.
Velperweg 76
NL-6824 BM Arnhem / NL
Opponent's representative
Manitz Finsterwald Patent- und Rechtsanwaltspartnerschaft mbB
Postfach 31 02 20
80102 München / DE
 [N/P]
Former [2008/29]
Opponent(s)01  20.11.1984  19.12.1984  ADMISSIBLE
Luperox GmbH
Denzinger Strasse 7
D-89312 Günzburg / DE
Opponent's representative
Abitz, Walter, Dr.-Ing., et al, et al
Patentanwälte Abitz & Partner Postfach 86 01 09
D-81628 München / DE
 02  20.11.1984  19.12.1984  ADMISSIBLE
Akzo Nobel N.V.
Velperweg 76
NL-6824 BM Arnhem / NL
Opponent's representative
Manitz, Finsterwald & Partner GbR
Postfach 31 02 20
80102 München / DE
Former [1994/20]
Opponent(s)01  20.11.1984  19.12.1984  ADMISSIBLE
Luperox GmbH
Denzinger Strasse 7
D-89312 Günzburg / DE
Opponent's representative
Abitz, Walter, Dr.-Ing., et al, et al
Patentanwälte Abitz & Partner Postfach 86 01 09
D-81628 München / DE
 02  20.11.1984  19.12.1984  ADMISSIBLE
Akzo Nobel N.V.
Velperweg 76
NL-6824 BM Arnhem / NL
Opponent's representative
Dipl.-Phys.Dr. Manitz Dipl.-Ing. Finsterwald Dipl.-Ing. Grämkow Dipl.-Chem.Dr. Heyn Dipl.-Phys.Rotermund
B.Sc. Morgan, Postfach 22 16 11
D-80506 München / DE
Former [1986/36]
Opponent(s)01  20.11.1984  19.12.1984  ADMISSIBLE
Luperox GmbH
Denzinger Strasse 7
D-89312 Günzburg / DE
Opponent's representative
Abitz, Walter, Dr.-Ing., et al, et al
Patentanwälte Abitz & Partner Postfach 86 01 09
D-81628 München / DE
 02  20.11.1984  19.12.1984  ADMISSIBLE
Akzo N.V.
Velperweg 76
NL-6824 BM Arnhem / NL
Opponent's representative
Dipl.-Phys.Dr. Manitz Dipl.-Ing. Finsterwald Dipl.-Ing. Grämkow Dipl.-Chem.Dr. Heyn Dipl.-Phys.Rotermund
B.Sc. Morgan, Postfach 22 16 11
D-80506 München / DE
Former [1985/06]
Opponent(s)01  20.11.1984   
Luperox GmbH
Denzinger Strasse 7
D-89312 Günzburg / DE
Opponent's representative
Abitz, Walter, Dr.-Ing., et al, et al
Patentanwälte Abitz & Partner Postfach 86 01 09
D-81628 München / DE
 02  20.11.1984   
Akzo N.V.
Velperweg 76
NL-6824 BM Arnhem / NL
Opponent's representative
Schalkwijk, Pieter Cornelis
Akzo Nobel N.V. Patent Department P.O. 9300
NL-6800 SB Arnhem / NL
Former [1985/05]
Opponent(s)01  20.11.1984    ADMISSIBLE
Luperox GmbH
Denzinger Strasse 7
D-89312 Günzburg / DE
Opponent's representative
Abitz, Walter, Dr.-Ing., et al, et al
Patentanwälte Abitz & Partner Postfach 86 01 09
D-81628 München / DE
16.01.1985Invitation to proprietor to file observations on the notice of opposition
07.05.1985Reply of patent proprietor to notice(s) of opposition
18.12.1986Reply to a communication from the opposition division
10.04.1987Communication of observations of patent proprietor (Time limit: M02)
11.06.1987Reply of parties involved to observations of patent proprietor
18.05.1990Despatch of communication that the patent will be revoked
12.08.1993Despatch of a communication from the opposition division (Time limit: M02)
27.04.1994Despatch of interlocutory decision in opposition
07.05.1994Legal effect of interlocutory decision in opposition
26.08.1994Despatch of communication that the patent will be maintained as amended
31.10.1994Fee for printing new specification paid
Appeal following opposition20.07.1990Appeal received No.  T0590/90
12.09.1990Statement of grounds filed
24.03.1993Result of appeal procedure: maintenance in amended form
24.03.1993Date of oral proceedings
31.03.1993Minutes of the oral proceedings despatched
Fees paidRenewal fee
23.06.1983Renewal fee patent year 03
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Documents cited:SearchDE1265154  [ ] (HOECHST AG);
 DE1643599  [ ] (ARGUS CHEM);
 US3950375  [ ] (MCKEE PETER M, et al);
 DE2334269  [ ]
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.