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EP0717117
European procedure
Extract from the Register of European Patents
EP About this file: EP0717117
| EP0717117 - Method for the recovery of silver value from aqueous solution [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 07.04.2000 Database last updated on 15.11.2024 | Most recent event Tooltip | 07.04.2000 | No opposition filed within time limit | published on 24.05.2000 [2000/21] | Applicant(s) | For all designated states JAPAN as represented by DIRECTOR GENERAL OF AGENCY OF INDUSTRIAL SCIENCE AND TECHNOLOGY 3-1, Kasumigaseki 1-chome, Chiyoda-ku Tokyo-to / JP | [1996/25] | Inventor(s) | 01 /
Wakui, Yoshito, c/o Tohuko National Industrial Research Institute, 2-1 Nigatake 4-chome Miyagino-ku, Sendai-shi, Miyagi-ken / JP | 02 /
Itabashi, Osamu, c/o Tohuko National Industrial Research Institute, 2-1 Nigatake 4-chome Miyagino-ku, Sendai-shi, Miyagi-ken / JP | [1999/31] |
| Former [1996/25] | 01 /
Wakui, Yoshito, c/o Tohuko National Industrial Research Institute, 2-1 Nigatake 4-chome Miyagino-ku, Sendai-shi, Miyagi-ken / JP | ||
| 02 /
Tabashi, Osamu, c/o Tohuko National Industrial Research Institute, 2-1 Nigatake 4-chome Miyagino-ku, Sendai-shi, Miyagi-ken / JP | Representative(s) | Baverstock, Michael George Douglas, et al BOULT WADE TENNANT, Verulam Gardens 70 Gray's Inn Road London WC1X 8BT / GB | [N/P] |
| Former [1996/25] | Baverstock, Michael George Douglas, et al BOULT, WADE & TENNANT 27 Furnival Street London, EC4A 1PQ / GB | Application number, filing date | 95309028.9 | 12.12.1995 | [1996/25] | Priority number, date | JP19940334068 | 15.12.1994 Original published format: JP 33406894 | [1996/25] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0717117 | Date: | 19.06.1996 | Language: | EN | [1996/25] | Type: | B1 Patent specification | No.: | EP0717117 | Date: | 02.06.1999 | Language: | EN | [1999/22] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 12.04.1996 | Classification | IPC: | C22B3/38, C22B3/24, C22B7/00, C23F1/46, G03C5/31, G03C5/395, // C22B11:00 | [1998/37] | CPC: |
G03C5/395 (EP,US);
C22B11/04 (EP,US);
C22B11/046 (EP,US);
C22B3/385 (EP,US);
Y02P10/20 (EP,US)
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| Former IPC [1996/25] | C22B3/28, C22B3/24, C22B7/00, C23F1/46, G03C5/31, G03C5/395, // C22B11:00 | Designated contracting states | DE, FR, GB, IT [1996/25] | Title | German: | Verfahren zur Rückgewinnung von Silber aus wässrigen Lösungen | [1996/25] | English: | Method for the recovery of silver value from aqueous solution | [1996/25] | French: | Procédé pour la récupération d'argent des solutions aqueuses | [1996/25] | Examination procedure | 03.06.1996 | Examination requested [1996/31] | 20.08.1997 | Despatch of a communication from the examining division (Time limit: M04) | 17.11.1997 | Reply to a communication from the examining division | 17.03.1998 | Despatch of a communication from the examining division (Time limit: M04) | 11.05.1998 | Reply to a communication from the examining division | 12.08.1998 | Despatch of communication of intention to grant (Approval: Yes) | 01.12.1998 | Communication of intention to grant the patent | 01.03.1999 | Fee for grant paid | 01.03.1999 | Fee for publishing/printing paid | Opposition(s) | 03.03.2000 | No opposition filed within time limit [2000/21] | Fees paid | Renewal fee | 08.12.1997 | Renewal fee patent year 03 | 07.12.1998 | Renewal fee patent year 04 |
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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 | [A]JPH03278802 | [XY] - WAKUI ET AL., "SOLVENT EXTRACTION OF SILVER(I) FROM MINERAL ACIDS BY DI (2-ETHYLHEXYL) HYDROGEN MONOTHIOPHOSPHATE", CHEMICAL ABSTRACTS, (19920921), vol. 117, no. 12, Database accession no. 115533 [XY] 1-3 * abstract * [Y] 4-10 | [ ] - WAKUI ET AL., "SOLVENT EXTRACTION OF SILVER(I) FROM MINERAL ACIDS BY DI(2-ETHYLHEXYL)HYDROGEN MONOTHIOPHOSPHATE", TOHOKU KOGYO GIJUTSU SHIKENJO, ,SENDAI JAPAN, vol. 25, pages 47 - 51 [ ] * the whole document * | [Y] - COTE ET AL., "EXTRACTION OF NON-FERROUS METALS BY THIOPHOSPHORUS EXTRACTANTS", CEMISTRY & INDUSTRY, LONDON, (19861117), no. 22, pages 780 - 784, XP002028741 [Y] 1-10 * the whole document * | [Y] - BROMBERG ET AL., "MEMBRANE EXTRACTION OF SILVER BY DI(2-ETHYLHEXYL)DITHIOPHOSPHORIC ACID", JOURNAL OF MEMBRANE SCIENCE, AMSTERDAM, (19920520), vol. 70, no. 1, pages 31 - 39, XP000299393 [Y] 1-10 * the whole document * DOI: http://dx.doi.org/10.1016/0376-7388(92)80077-W | [A] - DATABASE WPI, 1, Derwent World Patents Index, Database accession no. 92030420, & JPH03278802 A 00000000 (DAICHI KAGAKU KOGYO KK) [A] * abstract * |