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Extract from the Register of European Patents

EP About this file: EP0004745

EP0004745 - Process for the catalytic oxidation of sulphur dioxide to form sulphur trioxide [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  14.07.1982
Database last updated on 12.10.2024
Most recent event   Tooltip07.07.2007Change - inventorpublished on 08.08.2007  [2007/32]
Applicant(s)For all designated states
BOC Limited
Hammersmith House
London W6 9DX / GB
[N/P]
Inventor(s)01 / Blakey, Philip Gary
20 Chestnut Avenue
Riddings Derbyshire / GB
02 / Smith, Bryan Keith
2 Viggory Cottages Viggory Lane Horsell
Woking Surrey / GB
[N/P]
Representative(s)Wickham, Michael, et al
C/o Patent and Trademark Department
BOC Limited
Hammersmith House
London
W6 9DX / GB
[N/P]
Application number, filing date79300506.728.03.1979
Priority number, dateGB1978001382107.04.1978         Original published format: GB 1382178
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0004745
Date:17.10.1979
Language:EN
[N/P]
Search report(s)(Supplementary) European search report - dispatched on:EP17.07.1979
ClassificationIPC:C01B17/68
CPC:
C01B17/765 (EP)
Designated contracting statesBE,   DE,   FR,   IT,   NL 
TitleGerman:Verfahren zur katalytischen Oxidation von Schwefeldioxid zu Schwefeltrioxid
English:Process for the catalytic oxidation of sulphur dioxide to form sulphur trioxide
French:Procédé pour l'oxydation catalytique d'anhydride sulfureux en anhydride sulfurique
File destroyed:12.02.1989
Examination procedure31.03.1980Examination requested  [1981/23]
02.10.1981Despatch of a communication from the examining division (Time limit: M04)
24.03.1982Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [1982/37]
03.06.1982Application deemed to be withdrawn, date of legal effect  [1982/37]
Fees paidRenewal fee
13.03.1981Renewal fee patent year 03
Penalty fee
Additional fee for renewal fee
31.03.198204   M06   Not yet paid
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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.
Documents cited:SearchUS3282645  [ ] (MANDELIK BERNARD G);
 DE1060367  [ ] (GERD PETERSEN DR ING);
 US3803297  [ ] (GUTH H, et al);
 US4016248  [ ] (VYDRA KAREL, et al);
 US2180727  [ ] (CARTER BERNARD M);
 DE1186837  [ ] (METALLGESELLSCHAFT AG)
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.