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Extract from the Register of European Patents

EP About this file: EP0071133

EP0071133 - Process for preparing chlorosulfonic acid [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  08.07.1987
Database last updated on 09.12.2024
Most recent event   Tooltip08.07.1987No opposition filed within time limitpublished on 26.08.1987 [1987/35]
Applicant(s)For all designated states
BAYER AG
51368 Leverkusen / DE
[N/P]
Former [1983/06]For all designated states
BAYER AG
D-51368 Leverkusen / DE
Inventor(s)01 / Schultz, Karl-Heinz, Dr.
Deswatinesstrasse 61
D-4150 Krefeld / DE
02 / Baunack, Fritz, Dr.
Hebbelstrasse 5
D-5090 Leverkusen 1 / DE
[1983/06]
Application number, filing date82106469.819.07.1982
[1983/06]
Priority number, dateDE1981312997629.07.1981         Original published format: DE 3129976
[1983/06]
Filing languageDE
Procedural languageDE
PublicationType: A2 Application without search report 
No.:EP0071133
Date:09.02.1983
Language:DE
[1983/06]
Type: A3 Search report 
No.:EP0071133
Date:05.09.1984
Language:DE
[1984/36]
Type: B1 Patent specification 
No.:EP0071133
Date:10.09.1986
Language:DE
[1986/37]
Search report(s)(Supplementary) European search report - dispatched on:EP03.07.1984
ClassificationIPC:C01B17/46
[1983/06]
CPC:
C01B17/466 (EP)
Designated contracting statesBE,   DE,   FR,   GB,   NL [1983/06]
TitleGerman:Verfahren zur Herstellung von Chlorsulfonsäure[1983/06]
English:Process for preparing chlorosulfonic acid[1983/06]
French:Procédé pour la préparation d'acide chlorosulfoné[1983/06]
File destroyed:12.06.1999
Examination procedure19.07.1982Examination requested  [1983/06]
22.04.1985Despatch of a communication from the examining division (Time limit: M04)
16.08.1985Reply to a communication from the examining division
31.10.1985Despatch of communication of intention to grant (Approval: )
06.02.1986Communication of intention to grant the patent
17.02.1986Fee for grant paid
17.02.1986Fee for publishing/printing paid
Opposition(s)11.06.1987No opposition filed within time limit [1987/35]
Fees paidRenewal fee
25.06.1984Renewal fee patent year 03
27.06.1985Renewal fee patent year 04
18.06.1986Renewal 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.
Documents cited:Search[A]US1422335  (ISABELLE M BRIGGS, 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.