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EP0041050
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EP About this file: EP0041050
| EP0041050 - Process for treating the waste liquors spent upon the digestion of lignocellulosic materials during paper pulp production according to the sulphite or bisulphite process [Right-click to bookmark this link] | Status | The application has been withdrawn Status updated on 11.05.1984 Database last updated on 18.03.2026 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states BATTELLE MEMORIAL INSTITUTE 7 route de Drize CH-1227 Carouge/Genève / CH | [1981/48] | Inventor(s) | 01 /
Johansson, Allan Ake 13, rue des Lattes CH-1217 Meyrin / CH | [1981/48] | Representative(s) | Dousse, Blasco, et al 73, Avenue de Mategin 1217 Meyrin-Genève / CH | [N/P] |
| Former [1981/48] | Dousse, Blasco, et al 7, route de Drize CH-1227 Carouge/Genève / CH | Application number, filing date | 81810196.6 | 25.05.1981 | [1981/48] | Priority number, date | CH19800004090 | 27.05.1980 Original published format: CH 409080 | [1981/48] | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0041050 | Date: | 02.12.1981 | Language: | FR | [1981/48] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 14.09.1981 | Classification | IPC: | D21C11/02 | [1981/48] | CPC: |
D21C11/0042 (EP)
| Designated contracting states | AT, CH, DE, FR, LI, SE [1981/48] | Title | German: | Verfahren zur Behandlung der Ablaugen aus dem Aufschluss von Lignocellulosematerialien während der Herstellung von Papierpulpe nach dem Sulfit- oder Bisulfitverfahren | [1981/48] | English: | Process for treating the waste liquors spent upon the digestion of lignocellulosic materials during paper pulp production according to the sulphite or bisulphite process | [1981/48] | French: | Procédé pour traiter les solutions usées de digestion des matières ligno-cellulosiques lors de la fabrication de la pâte à papier par les méthodes dites "au sulfite" ou "au bisulfite" | [1981/48] | File destroyed: | 14.07.1990 | Examination procedure | 13.04.1982 | Examination requested [1982/25] | 11.10.1983 | Despatch of a communication from the examining division (Time limit: M04) | 29.10.1983 | Reply to a communication from the examining division | 09.12.1983 | Despatch of communication of intention to grant (Approval: ) | 02.03.1984 | Communication of intention to grant the patent | 02.05.1984 | Application withdrawn by applicant [1984/28] | Fees paid | Renewal fee | 19.05.1983 | Renewal fee patent year 03 |
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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 | [D] J. APPL. CHEM. BIOTECHNOL. vol. 27, 1977 Oxford, GB H. EL-SAIED: "Liquefaction of Lignohemicellulosic Waste by Processing with Carbon Monoxide and Water", pages 443-452 [D] | [D] ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, vol. 47, no. 9, mars 1977, rf. 9473 Appleton, Wisconsin, US S. HILL "Oil from wood wastes", page 979 & Proc. Conf. Wood & Bark Residues for Energy, Ore State Univ. (Corvallis) 29-34 (mai 1974, publ. fvr. 1975) [D] |