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Extract from the Register of European Patents

EP About this file: EP0411628

EP0411628 - Process for the stabilization of polyolefin and products obtained thereby [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  25.09.1998
Database last updated on 02.11.2024
Most recent event   Tooltip25.09.1998No opposition filed within time limitpublished on 11.11.1998 [1998/46]
Applicant(s)For all designated states
MONTELL NORTH AMERICA INC.
2801 Centerville Road New Castle County
Delaware / US
[N/P]
Former [1995/44]For all designated states
MONTELL NORTH AMERICA INC.
2801 Centerville Road
New Castle County Delaware / US
Former [1991/06]For all designated states
Himont Incorporated
2801 Centerville Road
New Castle County Delaware / US
Inventor(s)01 / Caselli, Giancarlo, Dr. chem.
27, via M.M. Boiardo
I-44100 Ferrara / IT
02 / Gorini, Giuseppe. Dr. chem.
82, corso di Porta Po
I-44100 Ferrara / IT
[1991/06]
Representative(s)Zumstein jun., Fritz, et al
Patentanwälte
Dr. F. Zumstein
Dipl.-Ing. F. Klingseisen
Bräuhausstrasse 4
80331 München / DE
[N/P]
Former [1991/06]Zumstein, Fritz, Dr., et al
Patentanwälte, Dr. F. Zumstein, Dipl.-Ing. F. Klingseisen, Bräuhausstrasse 4
D-80331 München / DE
Application number, filing date90114853.602.08.1990
[1991/06]
Priority number, dateIT1989002142302.08.1989         Original published format: IT 2142389
[1991/06]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0411628
Date:06.02.1991
Language:EN
[1991/06]
Type: A3 Search report 
No.:EP0411628
Date:08.04.1992
Language:EN
[1992/15]
Type: B1 Patent specification 
No.:EP0411628
Date:19.11.1997
Language:EN
[1997/47]
Search report(s)(Supplementary) European search report - dispatched on:EP18.02.1992
ClassificationIPC:C08K5/00, C08J7/00, C08L23/02, // (C08K5/00, 5:13, 5:51)
[1997/47]
CPC:
C08J3/203 (EP,US); C08L23/00 (KR); C08K5/005 (EP,US);
C08J2323/02 (EP,US)
C-Set:
C08K5/005, C08L23/02 (EP,US)
Former IPC [1992/15]C08K5/00, C08J7/00, C08L23/02, // (C08K5/00, 5:13, :, 5:51)
Former IPC [1991/06]C08K5/00, C08J7/00, C08L23/02, // (C08K5/00, 5:13, 5:51)
Designated contracting statesAT,   BE,   DE,   DK,   ES,   FR,   GB,   IT,   NL,   SE [1991/06]
TitleGerman:Verfahren zur Stabilisierung von Polyolefinen und so erhältliche Produkte[1991/06]
English:Process for the stabilization of polyolefin and products obtained thereby[1991/06]
French:Procédé de stabilisation de polyoléfine et produits ainsi obtenus[1991/06]
Examination procedure06.10.1992Examination requested  [1992/49]
29.08.1995Despatch of a communication from the examining division (Time limit: M06)
28.02.1996Reply to a communication from the examining division
29.10.1996Despatch of communication of intention to grant (Approval: Yes)
26.02.1997Communication of intention to grant the patent
23.05.1997Fee for grant paid
23.05.1997Fee for publishing/printing paid
Opposition(s)20.08.1998No opposition filed within time limit [1998/46]
Fees paidRenewal fee
10.08.1992Renewal fee patent year 03
11.08.1993Renewal fee patent year 04
09.08.1994Renewal fee patent year 05
09.08.1995Renewal fee patent year 06
10.08.1996Renewal fee patent year 07
08.08.1997Renewal fee patent year 08
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A]DE2260213  (STAMICARBON);
 [X]FR2301558  (CIBA GEIGY AG [CH]);
 [X]FR2389652  (BORG WARNER [US]);
 [X]US4377651  (LEININGER JAMES C);
 [X]US4463112  (LEISTNER WILLIAM E [US], et al);
 [X]US4739000  (BURTON LESTER P J [US]);
 [X]JPS63241048  (SUMITOMO CHEMICAL CO)
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.