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Extract from the Register of European Patents

EP About this file: EP0022164

EP0022164 - A process for the preparation of 1,4-butynediol and related catalyst [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  14.09.2016
Database last updated on 08.10.2024
Most recent event   Tooltip14.09.2016No opposition filed within time limit 
Applicant(s)For all designated states
SISAS SOCIETA'ITALIANA SERIE ACETICA E SINTETICA SPA
Largo Corsia dei Servi 3
I-20122 Milano / IT
[1981/02]
Inventor(s)01 / Codignola, Franco
Via Zanardelli 31
I-25014 Castenedolo Brescia / IT
02 / Gronchi, Paolo
Via Servio Tulio 4
I-20100 Milano / IT
03 / Vergini, Giorgio
Via Venini 49
I-20100 Milano / IT
04 / Dell Rosso, Renato
Via Palmanova 67
I-20132 Milano / IT
[1981/02]
Representative(s)Bühling, Gerhard, et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne-Grupe-Pellmann-Dragotti Bavariaring 4
D-8000 München 2 / DE
[N/P]
Former [1981/02]Bühling, Gerhard, Dipl.-Chem., et al
Patentanwaltsbüro Tiedtke-Bühling-Kinne-Grupe-Pellmann-Dragotti Bavariaring 4
D-8000 München 2 / DE
Application number, filing date80102863.022.05.1980
[1981/02]
Priority number, dateIT1979002365615.06.1979         Original published format: IT 2365679
[1981/02]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0022164
Date:14.01.1981
Language:EN
[1981/02]
Type: B1 Patent specification 
No.:EP0022164
Date:12.01.1983
Language:EN
[1983/02]
Search report(s)(Supplementary) European search report - dispatched on:EP26.09.1980
ClassificationIPC:C07C33/046, C07C29/00, B01J31/06
[1981/02]
CPC:
C07C33/046 (EP); B01J31/1658 (EP); B01J31/181 (EP);
B01J2231/341 (EP); B01J2531/16 (EP); B01J2531/18 (EP);
B01J2531/28 (EP); B01J2531/824 (EP); B01J2531/847 (EP) (-)
Designated contracting statesDE,   FR,   GB,   SE [1981/02]
TitleGerman:Verfahren zur Herstellung von 1.4-Butindiol und Katalysator hierfür[1981/02]
English:A process for the preparation of 1,4-butynediol and related catalyst[1981/02]
French:Procédé de préparation de 1,4-butyne-diol et catalyseur à cet effet[1981/02]
File destroyed:12.06.1999
Examination procedure09.07.1981Examination requested  [1981/38]
18.12.1981Despatch of a communication from the examining division (Time limit: M02)
18.02.1982Reply to a communication from the examining division
24.05.1982Despatch of communication of intention to grant (Approval: )
23.07.1982Communication of intention to grant the patent
13.10.1982Fee for grant paid
13.10.1982Fee for publishing/printing paid
Opposition(s)12.10.1983No opposition filed within time limit [ N /P ]
Fees paidRenewal fee
14.04.1982Renewal fee patent year 03
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Lapses during opposition  TooltipSE12.01.1983
[1983/43]
Documents cited:SearchDE2429269  [ ]
    [ ] - CHEMICAL ABSTRACTS Vol. 84, No. 26, 1976 Columbus, Ohio, USA E. TSUCHIDA et al. "Effect of nonpolar field formed by polymer ligand on the oxidation of 2.6-xylenol catalyzed by copper complexes" page 6, column 1, Abstract No. 180726g & J. Polym. Sci., Polym. Chem. Ed., Vol. 14, No. 4, 1976, pages 825 to 832 (Eng).
    [ ] - INDUSTRIAL AND ENGINEERING CHEMISTRY. PRODUCT RESEARCH AND DEVELOPMENT, Vol. 17, No. 2, 1978 Columbus, Ohio, USA H. HAYASHI "Oxidative Coupling of Diphenylmethanimine Catalyzed by Copper-Loaded Copolymers of 4-Vinylpyridine and Divinylbenzene 1" pages 128 to 133 *
Examination   - INDUSTRIAL AND ENFINEERING CHEMISTRY. PRODUCT RESEARCH AND DEVELOPMENT, Vol. 17, No. 2, 1978 Columbus, Ohio, USA H. HAYASHI "Oxidative Coupling of Diphenylmethanimine Catalyzed by Copper-Loaded Copolymers of 4-Vinyl-pyridine and Divinylbenzene" pages 128 to 133
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.