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Extract from the Register of European Patents

EP About this file: EP0168185

EP0168185 - Improving zeolite catalyst life [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  26.05.1989
Database last updated on 31.08.2024
Most recent event   Tooltip07.07.2007Change - inventorpublished on 08.08.2007  [2007/32]
Applicant(s)For all designated states
EXXON RESEARCH AND ENGINEERING COMPANY
P.O.Box 390
180 Park Avenue
Florham Park
New Jersey 07932-0390 / US
[N/P]
Former [1986/03]For all designated states
EXXON RESEARCH AND ENGINEERING COMPANY
P.O.Box 390, 180 Park Avenue
Florham Park, New Jersey 07932-0390 / US
Inventor(s)01 / Pieters, Wim Johan Meindert
12 Springview Drive
Morristown New Jersey / US
02 / Okumura, Yoshiharu
2-6-29-112 Shimoochiai Shinjuku
Tokyo / JP
[1986/03]
Representative(s)Dew, Melvyn John, et al
Exxon Chemical Limited
European Patents and Licences
Exxon Chemical Technology Centre
P.Po. Box 1
Abingdon, Oxfordshire, OX13 6BB / GB
[N/P]
Former [1986/03]Dew, Melvyn John, et al
Exxon Chemical Limited European Patents and Licences Exxon Chemical Technology Centre P.Po. Box 1
Abingdon Oxfordshire, OX13 6BB / GB
Application number, filing date85304294.314.06.1985
[1986/03]
Priority number, dateUS1984063063613.07.1984         Original published format: US 630636
[1986/03]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0168185
Date:15.01.1986
Language:EN
[1986/03]
Type: A3 Search report 
No.:EP0168185
Date:29.07.1987
Language:EN
[1987/31]
Search report(s)(Supplementary) European search report - dispatched on:EP09.06.1987
ClassificationIPC:B01J29/04, B01J29/28, C07C1/20, C10G3/00
[1986/03]
CPC:
B01J29/87 (EP,US); B01J29/40 (EP,US); C07C1/20 (EP,US);
B01J2229/123 (EP,US); B01J2229/34 (EP,US); C07C2529/40 (EP,US)
C-Set:
C07C1/20, C07C11/02 (EP,US)
Designated contracting statesDE,   FR [1986/03]
TitleGerman:Verbesserung der Lebensdauer von Zeolithkatalysatoren[1986/03]
English:Improving zeolite catalyst life[1986/03]
French:Amélioration de la durée de vie des catalyseurs zéolitiques[1986/03]
File destroyed:21.07.1995
Examination procedure10.07.1985Examination requested  [1986/03]
28.03.1988Despatch of communication of intention to grant (Approval: )
09.08.1988Application refused, date of legal effect [1989/28]
09.09.1988Despatch of communication that the application is refused, reason: formalities examination [1989/28]
Fees paidRenewal fee
27.03.1987Renewal fee patent year 03
21.03.1988Renewal fee patent year 04
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Documents cited:Search[Y]EP0068755  (MOBIL OIL CORP [US]);
 [YD]US4231899  (CHEN NAI Y, et al);
 [A]EP0021600  (MOBIL OIL CORP [US])
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.