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Extract from the Register of European Patents

EP About this file: EP0171591

EP0171591 - Storage-stable low-shrinkage curable unsaturated polyester [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  30.08.1996
Database last updated on 03.10.2024
Most recent event   Tooltip30.08.1996Revocation of patentpublished on 16.10.1996 [1996/42]
Applicant(s)For all designated states
DSM N.V.
Het Overloon 1
6411 TE Heerlen / NL
[N/P]
Former [1992/11]For all designated states
DSM N.V.
Het Overloon 1
NL-6411 TE Heerlen / NL
Former [1989/43]For all designated states
STAMICARBON B.V.
P.O. Box 605
NL-6160 AP Geleen / NL
Former [1986/08]For all designated states
BAYER AG
D-51368 Leverkusen / DE
Inventor(s)01 / Brassat, Bert, Dr.
Bethelstrasse 24
D-4150 Krefeld / DE
02 / Walter, Oskar, Dipl.-Ing.
Buscher Holzweg 16
D-4150 Krefeld / DE
03 / Hess, Bernhard, Dr.
Kaldenhausener Strasse 84
D-4130 Moers 2 / DE
[1986/08]
Application number, filing date85108423.608.07.1985
[1986/08]
Priority number, dateDE1984342642518.07.1984         Original published format: DE 3426425
[1986/08]
Filing languageDE
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0171591
Date:19.02.1986
Language:DE
[1986/08]
Type: A3 Search report 
No.:EP0171591
Date:22.07.1987
Language:DE
[1987/30]
Type: B1 Patent specification 
No.:EP0171591
Date:20.01.1993
Language:EN
[1993/03]
Search report(s)(Supplementary) European search report - dispatched on:EP03.06.1987
ClassificationIPC:C08L67/06, C08F299/04
[1986/08]
CPC:
C08L67/06 (EP)
C-Set:
C08L67/06, C08L2666/02 (EP);
C08L67/06, C08L67/00, C08L1/10, C08L33/12, C08L31/04 (EP)
Designated contracting statesAT,   DE,   FR,   GB,   IT,   NL,   SE [1986/08]
TitleGerman:Lagerfähige schwundarm härtbare ungesättigte Polyesterharze[1986/08]
English:Storage-stable low-shrinkage curable unsaturated polyester[1986/08]
French:Résine de polyester insaturé durcissable à faible retrait et stable au stockage[1986/08]
Examination procedure08.07.1985Examination requested  [1986/08]
06.04.1989Despatch of a communication from the examining division (Time limit: M05)
04.09.1989Reply to a communication from the examining division
17.11.1989Despatch of a communication from the examining division (Time limit: M06)
22.05.1990Reply to a communication from the examining division
17.07.1990Despatch of a communication from the examining division (Time limit: M04)
22.11.1990Reply to a communication from the examining division
12.12.1990Despatch of a communication from the examining division (Time limit: M04)
14.03.1991Reply to a communication from the examining division
26.03.1991Despatch of a communication from the examining division (Time limit: M04)
24.07.1991Reply to a communication from the examining division
10.09.1991Despatch of a communication from the examining division (Time limit: M04)
15.01.1992Reply to a communication from the examining division
13.04.1992Despatch of communication of intention to grant (Approval: Yes)
21.07.1992Communication of intention to grant the patent
25.09.1992Fee for grant paid
25.09.1992Fee for publishing/printing paid
Opposition(s)Opponent(s)01  06.08.1993  23.08.1993  ADMISSIBLE
BASF Aktiengesellschaft
-Patentabteilung - C6- Carl-Bosch-Strasse 38
D-67056 Ludwigshafen / DE
 [N/P]
Former [1993/39]
Opponent(s)01  06.08.1993  23.08.1993  ADMISSIBLE
BASF Aktiengesellschaft, Ludwigshafen
-Patentabteilung - C6- Carl-Bosch-Strasse 38
D-67056 Ludwigshafen / DE
29.11.1993Invitation to proprietor to file observations on the notice of opposition
26.05.1994Reply of patent proprietor to notice(s) of opposition
01.08.1994Despatch of a communication from the opposition division (Time limit: M06)
07.02.1995Reply to a communication from the opposition division
20.03.1996Date of oral proceedings
19.04.1996Despatch of minutes of oral proceedings
19.04.1996Despatch of communication that the patent will be revoked
29.04.1996Legal effect of revocation of patent [1996/42]
Fees paidRenewal fee
15.06.1987Renewal fee patent year 03
27.06.1988Renewal fee patent year 04
14.06.1989Renewal fee patent year 05
03.07.1990Renewal fee patent year 06
22.07.1991Renewal fee patent year 07
31.07.1992Renewal fee patent year 08
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Lapses during opposition  TooltipAT08.07.1993
[1995/02]
Documents cited:Search[X]FR2074378  (BP CHEM INT LTD);
 [X]CH548434  (REICHHOLD CHEMIE AG);
 [X]US3862064  (FRY DAVID PHILIP);
 [X]FR2305465  (BAYER AG [DE]);
 [X]US4172059  (ATKINS KENNETH E [US], et al)
ExaminationUS3668178
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.