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Extract from the Register of European Patents

EP About this file: EP0002373

EP0002373 - A method of making 2,4,5-trichlorophenol [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  22.02.1982
Database last updated on 26.07.2024
Most recent event   Tooltip07.07.2007Change - inventorpublished on 08.08.2007  [2007/32]
Applicant(s)For all designated states
STERWIN AG.
Zeughausgasse 9
CH-6300 Zug / CH
[1980/11]
Former [1980/11]For all designated states
STERWIN A.G.
Zeughausgasse 9
Zug / CH
Inventor(s)01 / Cuthbertson, Eric
Organics Dudley
Cramlington Northumberland / GB
[N/P]
Representative(s)Pennant, Pyers, et al
Stevens, Hewlett & Perkins Halton House 20/23 Holborn
London EC1N 2JD / GB
[N/P]
Application number, filing date78300722.201.12.1978
Priority number, dateGB1977005077306.12.1977         Original published format: GB 5077377
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0002373
Date:13.06.1979
Language:EN
[N/P]
Search report(s)(Supplementary) European search report - dispatched on:EP28.03.1979
ClassificationIPC:C07C37/00, C07C39/32
CPC:
C07C37/62 (EP,US)
C-Set:
C07C37/62, C07C39/32 (EP,US)
Designated contracting statesBE,   CH,   DE,   FR,   GB,   IT,   LU,   NL,   SE 
TitleGerman:Verfahren zur Herstellung von 2,4,5-Trichlorphenol
English:A method of making 2,4,5-trichlorophenol
French:Procédé de préparation de 2,4,5-trichlorophénol
File destroyed:12.02.1989
Examination procedure22.11.1979Examination requested  [1980/04]
06.02.1980Despatch of a communication from the examining division (Time limit: M06)
15.07.1980Reply to a communication from the examining division
03.10.1980Despatch of communication of intention to grant (Approval: )
30.04.1981Communication of intention to grant the patent
16.09.1981Despatch of communication that the application is deemed to be withdrawn, reason: fee for grant / fee for printing not paid in time  [1982/17]
26.11.1981Application deemed to be withdrawn, date of legal effect  [1982/17]
Fees paidRenewal fee
22.10.1980Renewal fee patent year 03
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Documents cited:Search[A]US2665314  (KRANTZ KARL W);
 [X]US2756260  (WIDIGER JR ALEXANDER H)
 [A]  - Chemisches Zentralblatt vol. 100, no. 24, 1929 I L.G. GROVES et al "Die Spaltung von Diaryl{thern und verwandten Verbindungen durch Piperidin. II Die Nitrierung von 2.4.4'-Trichlordiphenyl{ther und 2.4-Dichlorphenyl-p-toluolsulfonat und -benzoat" page 2877lines 40 to 42 & Journal of the Chemical Society of London 1929 page 512
 [A]  - Chemisches Zentralblatt vol. 102, no. 8, 1931 II M. KOHN et al "]ber Dichlorphenole, Trichlorphenole und ihre Bromierungsprodukte. 36. Mitt. }ber Bromphenole" page 1129, lines 56 to 57 and 61; page 1130, lines 1 to 2 & Monatshefte der Chemie vol. 581931 pages 73 to 91
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.