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EP0004731
European procedure
Extract from the Register of European Patents
EP About this file: EP0004731
| EP0004731 - Method for heavy-water recovery from a natural water feed stream and from a non-electrolytic hydrogen stream using a combined electrolysis and catalytic exchange system [Right-click to bookmark this link] | |||
| Former [1981/41] | Method for heavy-water extraction from non-electrolytic hydrogen streams using a combined electrolysis and catalytic exchange system | ||
| [1981/41] | Status | No opposition filed within time limit Status updated on 14.09.2016 Database last updated on 31.08.2024 | Most recent event Tooltip | 14.09.2016 | No opposition filed within time limit | Applicant(s) | For all designated states NORANDA MINES LIMITED P.O. Box 45 Suite 4500 Commerce Court West Toronto Ontario, M5L 1B6 / CA | For all designated states THE ELECTROLYSER CORPORATION LTD. 122 The West Mall Etobicoke Toronto Ontario / CA | [N/P] | Inventor(s) | 01 /
Leroy, Rodney L. 103 Brunet Street Pointe Claire Quebec / CA | 02 /
Hammerli, Martin 122 Frontenac Crescent Deep River Ontario / CA | 03 /
Butler, John P. 2 Cabot Place Deep River Ontario / CA | [N/P] | Representative(s) | Thomas, Roger Tamlyn, et al D. Young & Co. 21 New Fetter Lane London EC4A 1DA / GB | [1981/41] | Application number, filing date | 79300453.2 | 21.03.1979 | Priority number, date | CA19780300034 | 30.03.1978 Original published format: CA 300034 | Filing language | EN | Procedural language | EN | Publication | Type: | A3 Search report | No.: | EP0004731 | Date: | Status: | (deleted) | [N/P] | Type: | A2 Application without search report | No.: | EP0004731 | Date: | 17.10.1979 | Language: | EN | [N/P] | Type: | B1 Patent specification | No.: | EP0004731 | Date: | 14.10.1981 | Language: | EN | [1981/41] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 27.08.1979 | Classification | IPC: | C01B5/02 | [1981/41] | CPC: |
C01B5/02 (EP,US)
| Designated contracting states | BE, CH, DE, FR, GB, IT, NL, SE | Title | German: | Methode zur Wiedergewinnung von schwerem Wasser ausgehend von einem natürlichen Wasserstrom und einem nicht-elektrolytischen Wasserstoffstrom unter Verwendung eines kombinierten Systems, das Elektrolyse und katalytischen Austausch umfasst | [1981/41] | English: | Method for heavy-water recovery from a natural water feed stream and from a non-electrolytic hydrogen stream using a combined electrolysis and catalytic exchange system | [1981/41] | French: | Méthode de récupération de l'eau lourde à partir de courants d'eau naturelle et d'hydrogène non électrolytique utilisant un système combiné d'électrolyse et d'échange catalytique | [1981/41] |
| Former [1981/41] | Methode zur Extraktion von schwerem Wasser ausgehend von nicht-elektrolytischen Wasserstoffströmen unter Verwendung eines kombinierten Systems, das Elektrolyse und katalytischen Austausch umfasst | ||
| Former [1981/41] | Method for heavy-water extraction from non-electrolytic hydrogen streams using a combined electrolysis and catalytic exchange system | ||
| Former [1981/41] | Méthode d'extraction de l'eau lourde à partir de courants d'hydrogène non électrolytique utilisant un système combiné d'électrolyse et d'échange catalytique | Examination procedure | 06.11.1979 | Examination requested [1980/03] | 11.09.1980 | Despatch of a communication from the examining division (Time limit: M04) | 27.11.1980 | Reply to a communication from the examining division | 12.02.1981 | Despatch of communication of intention to grant (Approval: ) | 03.04.1981 | Communication of intention to grant the patent | 30.04.1981 | Fee for grant paid | 30.04.1981 | Fee for publishing/printing paid | Opposition(s) | 14.07.1982 | No opposition filed within time limit [ N /P ] | Fees paid | Renewal fee | 12.03.1981 | 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 | US2690380 [ ] (TAYLOR HUGH S); | FR2269493 [ ] (CA ATOMIC ENERGY LTD [CA]); | US3974048 [ ] (HAMMERLI MARTIN, et al); | US3981976 [ ] (STEVENS WILLIAM H) |