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Extract from the Register of European Patents

EP About this file: EP1047654

EP1047654 - METHOD FOR PRODUCING 2,6-DMN FROM MIXED DIMETHYLNAPHTHALENES BY CRYSTALLIZATION, ADSORPTION AND ISOMERIZATION [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  02.05.2003
Database last updated on 15.11.2024
Most recent event   Tooltip19.06.2009Change - representativepublished on 22.07.2009  [2009/30]
Applicant(s)For all designated states
Chevron Chemical Company LLC
Third Floor, 2613 Camino Ramon
San Ramon, CA 94583-4289 / US
[2000/44]
Inventor(s)01 / MUNSON, Curtis, L
3370 Crane Way
Oakland, CA 94602 / US
02 / BIGOT, Patrick, C.
78 Mt. Tallac Court
San Rafael, CA 94903 / US
03 / HE, Zunqing, Alice
97 Wallace Way
San Rafael, CA 94903 / US
[2000/44]
Representative(s)Nash, David Allan
Haseltine Lake LLP
Redcliff Quay
120 Redcliff Street
Bristol BS1 6HU / GB
[N/P]
Former [2009/30]Nash, David Allan
Haseltine Lake LLP Redcliff Quay 120 Redcliff Street Bristol
BS1 6HU / GB
Former [2000/44]Nash, David Allan
Haseltine Lake & Co., Imperial House, 15-19 Kingsway
London WC2B 6UD / GB
Application number, filing date98958076.618.11.1998
[2000/44]
WO1998US24643
Priority number, dateUS1997000085830.12.1997         Original published format: US 858
[2000/44]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9933770
Date:08.07.1999
Language:EN
[1999/27]
Type: A1 Application with search report 
No.:EP1047654
Date:02.11.2000
Language:EN
The application published by WIPO in one of the EPO official languages on 08.07.1999 takes the place of the publication of the European patent application.
[2000/44]
Search report(s)International search report - published on:EP08.07.1999
ClassificationIPC:C07C7/14, C07C7/12, C07C5/27, C07C15/24
[2000/44]
CPC:
C07C15/24 (EP,US); C07C7/14 (EP,KR,US); C07C7/13 (EP,US);
C07C2521/04 (EP,US); C07C2523/04 (EP,US); C07C2523/14 (EP,US);
C07C2523/36 (EP,US); C07C2523/42 (EP,US); C07C2523/44 (EP,US);
C07C2523/46 (EP,US); C07C2523/755 (EP,US) (-)
C-Set:
C07C7/13, C07C15/24 (EP,US);
C07C7/14, C07C15/24 (US,EP)
Designated contracting statesBE,   DE,   FR,   GB,   IT,   NL [2000/44]
TitleGerman:VERFAHREN ZUR HERSTELLUNG VON 2,6-DMN AUS GEMISCHTEN DIMETHYLNAPHTHOLEN DURCH KRISTALLATSION, ADSORPTION UND ISOMERISIERUNG[2000/44]
English:METHOD FOR PRODUCING 2,6-DMN FROM MIXED DIMETHYLNAPHTHALENES BY CRYSTALLIZATION, ADSORPTION AND ISOMERIZATION[2000/44]
French:PROCEDE DE PRODUCTION DE 2,6-DIMETHYLNAPHTALENE (2,6-DMN) A PARTIR DE DIMETHYLNAPHATALENES MELANGES PAR CRISTALLISATION, ADSORPTION ET ISOMERISATION[2000/44]
Entry into regional phase24.07.2000National basic fee paid 
24.07.2000Designation fee(s) paid 
24.07.2000Examination fee paid 
Examination procedure31.05.1999Request for preliminary examination filed
International Preliminary Examining Authority: EP
24.07.2000Examination requested  [2000/44]
11.06.2001Despatch of a communication from the examining division (Time limit: M06)
05.11.2001Reply to a communication from the examining division
06.12.2001Despatch of a communication from the examining division (Time limit: M04)
02.04.2002Reply to a communication from the examining division
10.12.2002Application refused, date of legal effect [2003/25]
10.12.2002Date of oral proceedings
17.01.2003Despatch of communication that the application is refused, reason: substantive examination [2003/25]
17.01.2003Minutes of oral proceedings despatched
Fees paidRenewal fee
10.11.2000Renewal fee patent year 03
26.10.2001Renewal fee patent year 04
07.11.2002Renewal fee patent year 05
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Cited inInternational search[Y]US3590091  (SKARADA THOMAS E, et al) [Y] 1-36 * column 2, line 55 - line 57; figure 1; claim 1 *;
 [Y]US3668267  (HEDGE JOHN A) [Y] 1-36 * column W *;
 [Y]US3803253  (SULD G, et al) [Y] 1-36 * column 5, line 28 - line 30; claim 1 *
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.