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Extract from the Register of European Patents

EP About this file: EP0616634

EP0616634 - METHOD FOR REMOVING SULFUR TO ULTRA LOW LEVELS FOR PROTECTION OF REFORMING CATALYSTS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  05.06.1998
Database last updated on 02.08.2024
Most recent event   Tooltip03.05.2002Lapse of the patent in a contracting state
New state(s): ES
published on 19.06.2002  [2002/25]
Applicant(s)For all designated states
Chevron U.S.A. Inc.
1635 Market Street Philadelphia
Pennsylvania 19103 / US
[N/P]
Former [1995/17]For all designated states
CHEVRON U.S.A. Inc.
1635 Market Street
Philadelphia Pennsylvania 19103 / US
Former [1994/39]For all designated states
CHEVRON RESEARCH AND TECHNOLOGY COMPANY
a division of CHEVRON U.S.A. INC., Post Office Box 7141
San Francisco, CA 94120-7141 / US
Inventor(s)01 / HOLTERMANN, Dennis, L.
55 Pennington Court
Crockett, CA 94525 / US
02 / BROWN, Warren, E.
250 Bobolink Way
Hercules, CA 94547 / US
[1994/39]
Representative(s)Nash, David Allan
Haseltine Lake LLP
Redcliff Quay
120 Redcliff Street
Bristol BS1 6HU / GB
[N/P]
Former [1994/39]Nash, David Allan
Haseltine Lake & Co. 28 Southampton Buildings Chancery Lane
London WC2A 1AT / GB
Application number, filing date92925106.405.11.1992
[1994/39]
WO1992US09588
Priority number, dateUS1991080460010.12.1991         Original published format: US 804600
[1994/39]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9312204
Date:24.06.1993
Language:EN
[1993/15]
Type: A1 Application with search report 
No.:EP0616634
Date:28.09.1994
Language:EN
The application published by WIPO in one of the EPO official languages on 24.06.1993 takes the place of the publication of the European patent application.
[1994/39]
Type: B1 Patent specification 
No.:EP0616634
Date:30.07.1997
Language:EN
[1997/31]
Search report(s)International search report - published on:US24.06.1993
(Supplementary) European search report - dispatched on:EP15.03.1995
ClassificationIPC:C10G61/00, C10G61/02, C10G61/06, C10G61/10
[1994/39]
CPC:
C10G69/08 (EP,US); C10G67/06 (EP,US)
Designated contracting statesAT,   BE,   DE,   ES,   FR,   GB,   IT,   NL [1994/39]
TitleGerman:METHODE ZUR ENTFERNUNG VON SCHWEFEL ZU ULTRA NIEDRIGEN STÄRKEN ZUM SCHUTZ VON REFORMKATALYSATOREN[1994/39]
English:METHOD FOR REMOVING SULFUR TO ULTRA LOW LEVELS FOR PROTECTION OF REFORMING CATALYSTS[1994/39]
French:PROCEDE PERMETTANT DE REDUIRE PAR EXTRACTION UNE TENEUR EN SOUFRE A DES NIVEAUX EXTREMEMENT FAIBLES AFIN DE PROTEGER DES CATALYSEURS DE REFORMAGE[1994/39]
Entry into regional phase05.07.1994National basic fee paid 
05.07.1994Search fee paid 
05.07.1994Designation fee(s) paid 
05.07.1994Examination fee paid 
Examination procedure09.07.1993Request for preliminary examination filed
International Preliminary Examining Authority: US
05.07.1994Examination requested  [1994/39]
20.12.1995Despatch of a communication from the examining division (Time limit: M06)
22.04.1996Reply to a communication from the examining division
23.09.1996Despatch of communication of intention to grant (Approval: Yes)
30.01.1997Communication of intention to grant the patent
24.04.1997Fee for grant paid
24.04.1997Fee for publishing/printing paid
Opposition(s)05.05.1998No opposition filed within time limit [1998/30]
Fees paidRenewal fee
07.11.1994Renewal fee patent year 03
10.11.1995Renewal fee patent year 04
11.11.1996Renewal fee patent year 05
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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.
Lapses during opposition  TooltipAT30.07.1997
ES30.07.1997
[2002/25]
Former [1998/15]AT30.07.1997
Documents cited:Search   [ ] - No further relevant documents disclosed
International search[A]US4225417  (NELSON THOMAS J);
 [X]US4446005  (EBERLY JR PAUL E [US], et al);
 [A]US4634515  (BAILEY GEORGE W [US], 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.