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Extract from the Register of European Patents

EP About this file: EP3941923

EP3941923 - SYNTHESIS OF METALLOCENE POLYMERIZATION CATALYST [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  17.05.2024
Database last updated on 05.10.2024
FormerThe patent has been granted
Status updated on  09.06.2023
FormerGrant of patent is intended
Status updated on  31.01.2023
FormerRequest for examination was made
Status updated on  24.12.2021
FormerThe international publication has been made
Status updated on  28.09.2020
Formerunknown
Status updated on  14.04.2020
Most recent event   Tooltip24.05.2024Lapse of the patent in a contracting state
New state(s): CZ, RO, SK
published on 26.06.2024  [2024/26]
Applicant(s)For all designated states
Nova Chemicals (International) S.A.
Avenue de la Gare 14
1700 Fribourg / CH
[2022/04]
Inventor(s)01 / CARTER, Charles
142 Hidden Creek Road NW
Calgary, Alberta T3A 6L7 / CA
02 / SMILEY-WIENS, Janelle
116 Citadel Meadow Gardens NW
Calgary, Alberta T3G 5N3 / CA
 [2023/28]
Former [2022/04]01 / CARTER, Charles
Calgary, Alberta T3A 6L7 / CA
02 / SMILEY-WIENS, Janelle
Calgary, Alberta T3G 5N3 / CA
Representative(s)Mewburn Ellis LLP
Aurora Building
Counterslip
Bristol BS1 6BX / GB
[2022/04]
Application number, filing date20716204.116.03.2020
[2022/04]
WO2020IB52396
Priority number, dateCA2019303741520.03.2019         Original published format: CA 3037415
[2022/04]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020188473
Date:24.09.2020
Language:EN
[2020/39]
Type: A1 Application with search report 
No.:EP3941923
Date:26.01.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 24.09.2020 takes the place of the publication of the European patent application.
[2022/04]
Type: B1 Patent specification 
No.:EP3941923
Date:12.07.2023
Language:EN
[2023/28]
Search report(s)International search report - published on:EP24.09.2020
ClassificationIPC:C07F1/06, C07F17/00
[2022/04]
CPC:
C07F1/06 (EP); C07F17/00 (EP,US)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2022/04]  
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:SYNTHESE VON METALLOCENPOLYMERISIERUNGSKATALYSATOR[2022/04]
English:SYNTHESIS OF METALLOCENE POLYMERIZATION CATALYST[2022/04]
French:SYNTHÈSE D'UN CATALYSEUR DE POLYMÉRISATION DE MÉTALLOCÈNE[2022/04]
Entry into regional phase01.10.2021National basic fee paid 
01.10.2021Designation fee(s) paid 
01.10.2021Examination fee paid 
Examination procedure01.10.2021Examination requested  [2022/04]
01.10.2021Date on which the examining division has become responsible
01.02.2023Communication of intention to grant the patent
31.05.2023Fee for grant paid
31.05.2023Fee for publishing/printing paid
31.05.2023Receipt of the translation of the claim(s)
Opposition(s)15.04.2024No opposition filed within time limit [2024/25]
Fees paidRenewal fee
23.03.2022Renewal fee patent year 03
21.03.2023Renewal fee patent year 04
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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  TooltipCZ12.07.2023
HR12.07.2023
PL12.07.2023
RO12.07.2023
RS12.07.2023
SK12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
IS12.11.2023
[2024/23]
Former [2024/20]HR12.07.2023
PL12.07.2023
RS12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
IS12.11.2023
Former [2024/10]HR12.07.2023
PL12.07.2023
RS12.07.2023
NO12.10.2023
GR13.10.2023
IS12.11.2023
Former [2024/09]NO12.10.2023
GR13.10.2023
IS12.11.2023
Former [2024/08]NO12.10.2023
GR13.10.2023
Cited inInternational search[AD]US7468452  (MARTIN JOEL L [US], et al) [AD] 1-20 * the whole document *;
 [AD]CN105646741  (CHANGCHUN INST APPLIED CHEMISTRY CAS) [AD] 1-20* the whole document *
by applicantUS7468452
 CN105646741
    - ALT, H.G.ZENK, R., J. Organomet. Chem., (19960000), vol. 522, page 39
    - KAMINSKY, W.HOPF, A.PIEL, C., J. Organomet. Chem., (20030000), vol. 684, page 200
    - PANGBORN, A. B.GIARADELLO, M. A.GRUBBS, R. H.ROSEN, R. K.TIMMERS, F. J., Organometallics, (19960000), vol. 15, pages 1518 - 1520
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.