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EP2786979 - Bibliographic data
Last update | 04/05/2022 |
---|---|
Legal status | Brevet déchu |
Origin | Euro-PCT |
(73)Owner |
ASAHI KASEI CHEMICALS CORPORATION 1-105 Kanda Jinbocho Chiyoda-ku Tokyo 101-8101 Japon |
(72)Inventors |
Tatsuto NAKAHARA Tokyo 1018101 Japon |
Hiroshi NAKANO Tokyo 1018101 Japon |
|
(74)Agent |
Mail recipient Strehl Schübel-Hopf & Partner Maximilianstrasse 54 80538 München Allemagne |
(21)Application number | EP12852999.7 |
(22)Application date | 11/27/2012 |
(11)Publication number | EP2786979 |
Grant date | 02/03/2016 |
(54)Invention title | PROCÉDÉ DE PURIFICATION DU 1,3-BUTADIÈNE |
(51)International classification | C07C 7/10, C07C 11/167, C08F 2/00, C08F 36/06, C07C 11/167, C08F 2/00, C08F 36/06 |
International classification (before reform) | None |
Claimed priority |
(31) Number: 2011259130 (32) Date: 11/28/2011 (33) Country: JP |
Initial application | None |
Divisional applications | None |
Expected annuity |
Annuity: 5 - Amount: 55€ - Due date 11/30/2016 Surtax: 5 - Amount: 11€ - Due date 06/01/2017 |
Last annuity | None |
Publication | BREVETS D'INVENTION DESIGNANT MC DELIVRES PAR l'OEB - bulletin 2016/18, of 05/06/2016 |
History | Publication de la délivrance du brevet européen - Legal date 02/03/2016 |
Entrée en période de grâce du brevet d'invention - Legal date 12/01/2016 | |
Déchéance du brevet d'invention après période de grâce - Legal date 11/30/2016 |