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Extract from the Register of European Patents

EP About this file: EP0516743

EP0516743 - TRANSITION METAL CATALYST COMPOSITION FOR OLEFIN POLYMERIZATION [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  15.07.1995
Database last updated on 03.09.2024
Most recent event   Tooltip15.07.1995No opposition filed within time limitpublished on 06.09.1995 [1995/36]
Applicant(s)For all designated states
EXXON CHEMICAL PATENTS INC.
1900 East Linden Avenue
Linden
New Jersey 07036-0710 / US
[N/P]
Former [1992/50]For all designated states
EXXON CHEMICAL PATENTS INC.
1900 East Linden Avenue
Linden, New Jersey 07036-0710 / US
Inventor(s)01 / DATTA, Sudhin
30 Briarwood Drive
Matawan, NJ 07747 / US
[1992/50]
Representative(s)Veldhuizen, Albert Dirk Willem, et al
Exxon Chemical Limited
European Patents and Licences
Exxon Chemical Technology Centre
P.O. Box 1, Abingdon
Oxfordshire OX13 6BB / GB
[N/P]
Former [1992/50]Veldhuizen, Albert Dirk Willem, et al
Exxon Chemical Limited European Patents and Licences Exxon Chemical Technology Centre P.O. Box 1
Abingdon Oxfordshire OX13 6BB / GB
Application number, filing date91905676.227.02.1991
[1992/50]
WO1991US01377
Priority number, dateUS1990048769502.03.1990         Original published format: US 487695
[1992/50]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO9113074
Date:05.09.1991
[1991/21]
Type: A1 Application with search report 
No.:EP0516743
Date:09.12.1992
Language:EN
The application published by WIPO in one of the EPO official languages on 05.09.1991 takes the place of the publication of the European patent application.
[1992/50]
Type: B1 Patent specification 
No.:EP0516743
Date:14.09.1994
Language:EN
[1994/37]
Search report(s)International search report - published on:EP17.10.1991
ClassificationIPC:C07F19/00, C07F9/00, C08F4/00, C08F10/00, C07F7/00
[1992/50]
CPC:
B01J31/223 (EP,US); B01J31/181 (EP,US); B01J31/1825 (EP,US);
C07F11/005 (EP,US); C07F7/003 (EP,US); C07F9/005 (EP,US);
C08F10/00 (EP,US); B01J2531/46 (EP,US); B01J2531/56 (EP,US);
B01J2531/62 (EP,US) (-)
C-Set:
C08F10/00, C08F4/602 (US,EP);
C08F10/00, C08F4/62 (EP,US);
C08F10/00, C08F4/64058 (US,EP);
C08F10/00, C08F4/68198 (US,EP)
Designated contracting statesBE,   DE,   FR,   GB,   IT,   NL [1992/50]
TitleGerman:ÜBERGANGSMETALL ENTHALTENDE KATALYSATORZUSAMMENSETZUNG ZUR POLYMERISATION VON OLEFINEN[1992/50]
English:TRANSITION METAL CATALYST COMPOSITION FOR OLEFIN POLYMERIZATION[1992/50]
French:COMPOSITION CATALYTIQUE A BASE DE METAUX DE TRANSITION POUR LA POLYMERISATION D'OLEFINES[1992/50]
Entry into regional phase14.08.1992National basic fee paid 
14.08.1992Designation fee(s) paid 
14.08.1992Examination fee paid 
Examination procedure20.09.1991Request for preliminary examination filed
International Preliminary Examining Authority: DE
14.08.1992Examination requested  [1992/50]
11.06.1993Despatch of a communication from the examining division (Time limit: M02)
15.07.1993Reply to a communication from the examining division
24.09.1993Despatch of communication of intention to grant (Approval: No)
12.03.1994Despatch of communication of intention to grant (Approval: later approval)
21.03.1994Communication of intention to grant the patent
09.06.1994Fee for grant paid
09.06.1994Fee for publishing/printing paid
Opposition(s)15.06.1995No opposition filed within time limit [1995/36]
Fees paidRenewal fee
14.08.1992Renewal fee patent year 03
07.01.1994Renewal fee patent year 04
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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.
Cited inInternational searchDE1242876  [ ] (DU PONT);
 FR2318879  [ ] (MONTEDISON SPA [IT]);
 US4374777  [ ] (HENRY RONALD A, et al)
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.