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EP0013465
European procedure
Extract from the Register of European Patents
EP About this file: EP0013465
| EP0013465 - Staged froth flotation with intermediate recycle [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 10.10.1984 Database last updated on 18.11.2024 | Most recent event Tooltip | 10.10.1984 | No opposition filed within time limit | published on 12.12.1984 [1984/50] | Applicant(s) | For all designated states CHEVRON RESEARCH COMPANY 555 Market Street, P.O. Box 7141 San Francisco California 94120-7141 / US | [N/P] |
| Former [1980/15] | For all designated states CHEVRON RESEARCH COMPANY 555 Market Street, P.O. Box 7141 San Francisco, California 94120-7141 / US | Inventor(s) | 01 /
Hinds, Robert J. 167 Knollwood Drive San Rafael California 94901 / US | [1980/15] | Representative(s) | Fisher, Bernard, et al B. FISHER & CO. 36 Sydenham Road Croydon Surrey CR0 2EF / GB | [N/P] |
| Former [1980/15] | Fisher, Bernard, et al B. FISHER & CO. 36 Sydenham Road Croydon Surrey CR0 2EF / GB | Application number, filing date | 79300036.5 | 10.01.1979 | [1980/15] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0013465 | Date: | 23.07.1980 | Language: | EN | [1980/15] | Type: | B1 Patent specification | No.: | EP0013465 | Date: | 07.12.1983 | Language: | EN | [1983/49] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 10.10.1979 | Classification | IPC: | B03D1/02, C02F1/24, B01D17/02 | [1980/15] | CPC: |
B01D17/0205 (EP);
B03D1/02 (EP);
C02F1/24 (EP);
B03D1/1475 (EP)
| Designated contracting states | DE, GB, NL [1980/15] | Title | German: | Mehrstufige Schaumflotation mit zwischenliegendem Rückstrom | [1980/15] | English: | Staged froth flotation with intermediate recycle | [1980/15] | French: | Flottation par formation d'écume en étages avec recyclage intermédiaire | [1980/15] | File destroyed: | 15.01.2000 | Examination procedure | 08.01.1981 | Examination requested [1981/13] | 02.11.1981 | Despatch of a communication from the examining division (Time limit: M04) | 04.03.1982 | Reply to a communication from the examining division | 14.10.1982 | Despatch of a communication from the examining division (Time limit: M04) | 24.01.1983 | Reply to a communication from the examining division | 24.02.1983 | Despatch of communication of intention to grant (Approval: ) | 25.05.1983 | Communication of intention to grant the patent | 22.07.1983 | Fee for grant paid | 22.07.1983 | Fee for publishing/printing paid | Opposition(s) | 08.09.1984 | No opposition filed within time limit [1984/50] | Fees paid | Renewal fee | 22.11.1980 | Renewal fee patent year 03 | 28.10.1981 | Renewal fee patent year 04 | 22.11.1982 | Renewal fee patent year 05 |
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