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Extract from the Register of European Patents

EP About this file: EP0467429

EP0467429 - Removal of hydrogenation catalyst from polymer solutions by catalyzed precipitation [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  05.07.1996
Database last updated on 31.08.2024
Most recent event   Tooltip05.07.1996No opposition filed within time limitpublished on 21.08.1996 [1996/34]
Applicant(s)For all designated states
Shell Internationale Research Maatschappij B.V.
Carel van Bylandtlaan 30
2596 HR Den Haag / NL
[N/P]
Former [1992/04]For all designated states
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
Carel van Bylandtlaan 30
NL-2596 HR Den Haag / NL
Inventor(s)01 / Diaz, Zaida
12106 Meadow Lake
Houston, Texas 77077 / US
02 / Gibler, Carma Joleen
410 Southchester
Houston, Texas 77079 / US
[1992/04]
Application number, filing date91201453.712.06.1991
[1992/04]
Priority number, dateUS1990053773814.06.1990         Original published format: US 537738
[1992/04]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0467429
Date:22.01.1992
Language:EN
[1992/04]
Type: A3 Search report 
No.:EP0467429
Date:26.08.1992
Language:EN
[1992/35]
Type: B1 Patent specification 
No.:EP0467429
Date:30.08.1995
Language:EN
[1995/35]
Search report(s)(Supplementary) European search report - dispatched on:EP07.07.1992
ClassificationIPC:C08C2/06, C08F6/08, C08C2/04
[1992/35]
CPC:
C08C2/04 (EP,US); C08F4/00 (KR)
Former IPC [1992/04]C08C2/06, C08F6/08
Designated contracting statesBE,   DE,   ES,   FR,   GB,   IT,   NL [1992/04]
TitleGerman:Entfernung von Hydrierkatalysatoren aus Polymerlösungen durch katalytische Präzipitation[1992/04]
English:Removal of hydrogenation catalyst from polymer solutions by catalyzed precipitation[1992/04]
French:Elimination du catalyseur d'hydrogénation de solutions de polymères par précipitation catalytique[1992/04]
Examination procedure15.12.1992Examination requested  [1993/06]
10.06.1994Despatch of a communication from the examining division (Time limit: M04)
10.10.1994Reply to a communication from the examining division
23.12.1994Despatch of communication of intention to grant (Approval: Yes)
02.02.1995Communication of intention to grant the patent
18.04.1995Fee for grant paid
18.04.1995Fee for publishing/printing paid
Opposition(s)31.05.1996No opposition filed within time limit [1996/34]
Fees paidRenewal fee
18.06.1993Renewal fee patent year 03
27.06.1994Renewal fee patent year 04
27.06.1995Renewal fee patent year 05
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Documents cited:Search[Y]JP45027321B  ;
 [Y]DE3346888  (NIPPON ZEON CO [JP])
 [Y]  - DATABASE WPI, accession no. 70-63152R [35], Derwent Publications Ltd, London, GB; & JP-B-45 027 321 (NIPPON SYNTH. CHEM.), & JP45027321B B 00000000
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.