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Extract from the Register of European Patents

EP About this file: EP0325511

EP0325511 - Process and catalyst for the selective reduction of nitrogen oxides [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  20.01.1993
Database last updated on 19.10.2024
Most recent event   Tooltip20.01.1993Application deemed to be withdrawnpublished on 10.03.1993 [1993/10]
Applicant(s)For all designated states
Institut Français du Pétrole
4, Avenue de Bois Préau
92502 Rueil-Malmaison / FR
[N/P]
Former [1989/30]For all designated states
INSTITUT FRANCAIS DU PETROLE
4, Avenue de Bois Préau
F-92502 Rueil-Malmaison / FR
Inventor(s)01 / Deschamps, André
3, Chemin des Princes
F-78590 Noisy le Roi / FR
02 / Dezael, Claude
60, Avenue Saint Germain
F-78600 Maisons Laffite / FR
03 / Roux-Guerraz, Claude
52, Rue Claude Decaen
F-75012 Paris / FR
04 / Travers, Christine
12 Boulevard du Général de Gaulle
F-92500 Rueil Malmaison / FR
[1989/30]
Application number, filing date89400091.811.01.1989
[1989/30]
Priority number, dateFR1988000063519.01.1988         Original published format: FR 8800635
[1989/30]
Filing languageFR
Procedural languageFR
PublicationType: A1 Application with search report 
No.:EP0325511
Date:26.07.1989
Language:FR
[1989/30]
Search report(s)(Supplementary) European search report - dispatched on:EP12.04.1989
ClassificationIPC:B01J29/24, B01J29/26, B01D53/36
[1989/30]
CPC:
B01J29/26 (EP,US); B01D53/8628 (EP,US); B01J29/24 (EP,US);
Y02C20/10 (EP,US)
Designated contracting statesBE,   DE,   GB,   IT,   NL [1989/30]
TitleGerman:Verfahren und Katalysator zur selectiven Reduktion von Stickstoffoxiden[1989/30]
English:Process and catalyst for the selective reduction of nitrogen oxides[1989/30]
French:Procédé et catalyseur pour la réduction sélective des oxydes d'azote[1989/30]
File destroyed:12.06.1999
Examination procedure17.11.1989Examination requested  [1990/02]
17.09.1990Despatch of a communication from the examining division (Time limit: M04)
12.01.1991Reply to a communication from the examining division
05.04.1991Despatch of communication of intention to grant (Approval: Yes)
06.08.1991Communication of intention to grant the patent
30.10.1991Fee for grant paid
30.10.1991Fee for publishing/printing paid
01.08.1992Application deemed to be withdrawn, date of legal effect  [1993/10]
08.09.1992Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time  [1993/10]
Fees paidRenewal fee
22.01.1991Renewal fee patent year 03
Penalty fee
Additional fee for renewal fee
31.01.199204   M06   Not yet paid
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Documents cited:Search[A]JP7681777  ;
 [XP]EP0286507  (AZOTE & PROD CHIM [FR]);
 [AD]US4473535  (KITTRELL JAMES R [US], et al);
 [A]FR2197815  (ATOMIC ENERGY COMMISSION [US]);
 [A]EP0141917  (STEULER INDUSTRIEWERKE GMBH [DE]);
 [A]EP0234974  (INST FRANCAIS DU PETROLE [FR]);
 [A]US4663300  (LESTER GEORGE R [US], et al)
 [A]  - CHEMICAL ABSTRACTS, vol. 87, no. 2, 11 juillet 1977, page 325, résumé no. 10890a, Columbus, Ohio, US; & JP-A-76 81 777 (TORAY INDUSTRIES, INC.) 17-07-1976, & JP7681777 A 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.