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Extract from the Register of European Patents

EP About this file: EP0278542

EP0278542 - Preparation of tetrazole compounds [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.02.1995
Database last updated on 07.10.2024
Most recent event   Tooltip09.02.1995No opposition filed within time limitpublished on 29.03.1995 [1995/13]
Applicant(s)For all designated states
Shell Internationale Research Maatschappij B.V.
Carel van Bylandtlaan 30
2596 HR Den Haag / NL
[N/P]
Former [1988/33]For all designated states
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
Carel van Bylandtlaan 30
NL-2596 HR Den Haag / NL
Inventor(s)01 / Scott, Richard Mark
Hamlet Court Hearts Delight
Borden New Sittingbourne Kent / GB
02 / Fox, William
43 Glenfyan Avenue
Cilbarchan Renfrewshire, Pa10 2JV / GB
[1988/33]
Representative(s)Allam, Peter Clerk, et al
Lloyd Wise Commonwealth House, 1-19 New Oxford Street
London WC1A 1LW / GB
[N/P]
Former [1994/47]Allam, Peter Clerk, et al
LLOYD WISE, TREGEAR & CO. Norman House 105-109 Strand
London WC2R 0AE / GB
Former [1994/14](deleted)
Former [1989/42]Bennett, David Arthur Horder, et al
4, York Road
London SE1 7NA / GB
Former [1988/33]Hunter, Keith Roger Ian
Shell International Petroleum Company Limited, Intellectual Property Division, P.O. Box 662
London SE1 7NE / GB
Application number, filing date88200055.713.01.1988
[1988/33]
Priority number, dateGB1987000074814.01.1987         Original published format: GB 8700748
[1988/33]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0278542
Date:17.08.1988
Language:EN
[1988/33]
Type: A3 Search report 
No.:EP0278542
Date:04.07.1990
Language:EN
[1990/27]
Type: B1 Patent specification 
No.:EP0278542
Date:06.04.1994
Language:EN
[1994/14]
Search report(s)(Supplementary) European search report - dispatched on:EP16.05.1990
ClassificationIPC:C07D257/04
[1988/33]
CPC:
C07D257/04 (EP)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1988/33]
TitleGerman:Verfahren zur Herstellung von Tetrazolderivaten[1988/33]
English:Preparation of tetrazole compounds[1988/33]
French:Préparation de dérivés de tétrazole[1988/33]
Examination procedure10.12.1990Examination requested  [1991/06]
17.12.1992Despatch of a communication from the examining division (Time limit: M04)
23.04.1993Reply to a communication from the examining division
09.06.1993Despatch of communication of intention to grant (Approval: No)
25.08.1993Despatch of communication of intention to grant (Approval: later approval)
31.08.1993Communication of intention to grant the patent
25.11.1993Fee for grant paid
25.11.1993Fee for publishing/printing paid
Opposition(s)10.01.1995No opposition filed within time limit [1995/13]
Fees paidRenewal fee
04.12.1989Renewal fee patent year 03
08.12.1990Renewal fee patent year 04
23.01.1992Renewal fee patent year 05
27.01.1993Renewal fee patent year 06
27.01.1994Renewal fee patent year 07
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Documents cited:Search[AD]FR1451028  (EASTMAN KODAK CO);
 [AD]EP0149269  (SHELL INT RESEARCH [NL])
ExaminationCA804030
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.