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EP0335540
European procedure
Extract from the Register of European Patents
EP About this file: EP0335540
| EP0335540 - Process for reforming a dimethylbutanefree hydrocarbon fraction [Right-click to bookmark this link] | Status | Opposition procedure closed Status updated on 03.10.1997 Database last updated on 03.01.2025 | Most recent event Tooltip | 23.12.1999 | Lapse of the patent in a contracting state | published on 09.02.2000 [2000/06] | Applicant(s) | For all designated states EXXON CHEMICAL PATENTS INC. 200 Park Avenue Florham Park New Jersey 07932 / US | [N/P] |
| Former [1989/40] | For all designated states EXXON CHEMICAL PATENTS INC. 200 Park Avenue Florham Park New Jersey 07932 / US | Inventor(s) | 01 /
Nadler, Murray 3823 Oberlin Houston Texas 77005 / US | 02 /
Kao, Jar-Lin 16507 Craighurst Houston Texas 77058 / US | [1989/40] | Representative(s) | White, Nicholas John, et al Harrison Goddard Foote Belmont House 20 Wood lane Leeds, West Yorkshire LS6 2AE / GB | [N/P] |
| Former [1998/34] | White, Nicholas John, Dr., et al Harrison Goddard Foote Belmont House 20 Wood lane Leeds, West Yorkshire LS6 2AE / GB | ||
| Former [1997/42] | White, Nicholas John, Dr., et al Dibb Lupton Alsop, Fountain Precinct Balm Green, Sheffield S1 1RZ / GB | ||
| Former [1994/03] | Bawden, Peter Charles, et al EXXON CHEMICAL LIMITED Exxon Chemical Technology Centre PO Box 1 Abingdon Oxfordshire OX13 6BB / GB | ||
| Former [1989/40] | Northover, Robert Frank Exxon Chemical Limited Exxon Chemical Technology Centre PO Box 1 Abingdon Oxfordshire, OX13 6BB / GB | Application number, filing date | 89302679.9 | 17.03.1989 | [1989/40] | Priority number, date | US19880175570 | 31.03.1988 Original published format: US 175570 | [1989/40] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0335540 | Date: | 04.10.1989 | Language: | EN | [1989/40] | Type: | B1 Patent specification | No.: | EP0335540 | Date: | 24.08.1994 | Language: | EN | [1994/34] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.08.1989 | Classification | IPC: | C10G35/095, C10G59/06 | [1989/40] | CPC: |
C10G35/095 (EP,KR,US);
C10G59/06 (EP,KR,US);
C10L1/06 (EP,US)
| Designated contracting states | BE, DE, FR, GB, IT, LU, NL [1989/40] | Title | German: | Verfahren zum Reformieren einer dimethylbutanfreien Kohlenwasserstofffraktion | [1989/40] | English: | Process for reforming a dimethylbutanefree hydrocarbon fraction | [1989/40] | French: | Procédé de reforming d'une fraction hydrocarbonée exempte de diméthylbutanes | [1989/40] | Examination procedure | 17.04.1989 | Examination requested [1989/40] | 30.08.1990 | Despatch of a communication from the examining division (Time limit: M06) | 06.03.1991 | Reply to a communication from the examining division | 21.11.1991 | Despatch of a communication from the examining division (Time limit: M04) | 26.03.1992 | Reply to a communication from the examining division | 17.06.1992 | Despatch of a communication from the examining division (Time limit: M04) | 16.10.1992 | Reply to a communication from the examining division | 09.12.1992 | Despatch of a communication from the examining division (Time limit: M04) | 01.04.1993 | Reply to a communication from the examining division | 22.10.1993 | Despatch of communication of intention to grant (Approval: Yes) | 28.02.1994 | Communication of intention to grant the patent | 17.05.1994 | Fee for grant paid | 17.05.1994 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
22.05.1995
31.05.1995
ADMISSIBLE Chevron Chemical Company P.O. Box 7141 San Francisco, California 94120-7141 / US Opponent's representative Nash, David Allan Haseltine Lake LLP Redcliff Quay 120 Redcliff Street Bristol BS1 6HU / GB | [N/P] |
| Former [1995/35] | |||
| Opponent(s) | 01
22.05.1995
31.05.1995
ADMISSIBLE Chevron Chemical Company P.O. Box 7141 San Francisco, California 94120-7141 / US Opponent's representative Nash, David Allan Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT / GB | ||
| Former [1995/28] | |||
| Opponent(s) | 01
22.05.1995
Chevron Chemical Company P.O. Box 7141 San Francisco, California 94120-7141 / US Opponent's representative Sunderland, James Harry HASELTINE LAKE & CO Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT / GB | 30.06.1995 | Invitation to proprietor to file observations on the notice of opposition | 10.01.1996 | Reply of patent proprietor to notice(s) of opposition | 27.06.1997 | Despatch of communication that the opposition procedure will be closed | 07.07.1997 | Legal effect of closure of opposition procedure [1997/47] | Fees paid | Renewal fee | 26.02.1991 | Renewal fee patent year 03 | 20.12.1991 | Renewal fee patent year 04 | 18.12.1992 | Renewal fee patent year 05 | 07.01.1994 | Renewal fee patent year 06 |
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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 Tooltip | LU | 31.03.1995 | [2000/06] | Documents cited: | Search | [XP]US4747933 (HIBBS FREDERICK M [GB]); | [XP]EP0303097 (LIGHT OIL UTILIZATION RES ASS [JP]); | [AD]US4594145 (ROARTY JOHN C [US]); | [A]FR2115208 (SHELL INT RESEARCH); | [A]US3005770 (LUTZ IRVIN H); | [A]US2944959 (KLINE ROBERT E, et al) | Examination | US4456527 | US4458025 | US4579831 | US4650565 | US4652689 | US4721694 | - Advances in catalysis,Vol.25, 1976, pages 150-155 |