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EP0071323
European procedure
Extract from the Register of European Patents
EP About this file: EP0071323
| EP0071323 - Method and composition for treating aqueous mediums [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 18.09.1986 Database last updated on 28.02.2026 | Most recent event Tooltip | 30.10.2009 | Change - representative | published on 02.12.2009 [2009/49] | Applicant(s) | For all designated states BETZ EUROPE, INC. 4636 Somerton Road Trevose Pennsylvania 19047 / US | [N/P] |
| Former [1983/06] | For all designated states BETZ EUROPE, INC. 4636 Somerton Road Trevose Pennsylvania 19047 / US | Inventor(s) | 01 /
Snyder, William Richard 1401 Maguire Lane Warminster Pennsylvania 18974 / US | 02 /
Feuerstein, Diane 1535 E.Putnam Avenue Old Greenwich Connecticut 06870 / US | [1983/06] | Representative(s) | McCall, John Douglas, et al WP Thompson Coopers Building Church Street Liverpool L1 3AB / GB | [N/P] |
| Former [2009/49] | McCall, John Douglas, et al W.P. Thompson & Co. Coopers Building Church Street Liverpool L1 3AB / GB | ||
| Former [1983/06] | McCall, John Douglas, et al W.P. THOMPSON & CO. Coopers Building Church Street Liverpool L1 3AB / GB | Application number, filing date | 82301565.6 | 24.03.1982 | [1983/06] | Priority number, date | US19810286497 | 24.07.1981 Original published format: US 286497 | [1983/06] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0071323 | Date: | 09.02.1983 | Language: | EN | [1983/06] | Type: | B1 Patent specification | No.: | EP0071323 | Date: | 21.11.1985 | Language: | EN | [1985/47] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.12.1982 | Classification | IPC: | C02F5/14 | [1983/06] | CPC: |
C02F5/14 (EP,US)
| Designated contracting states | BE, DE, FR, GB, IT, NL [1983/06] | Title | German: | Verfahren und Zusammensetzung zur Wasserbehandlung | [1983/06] | English: | Method and composition for treating aqueous mediums | [1983/06] | French: | Procédé et composition pour le traitement de milieux aqueux | [1983/06] | Examination procedure | 06.06.1983 | Examination requested [1983/33] | 27.02.1984 | Despatch of a communication from the examining division (Time limit: M04) | 14.06.1984 | Reply to a communication from the examining division | 04.02.1985 | Despatch of communication of intention to grant (Approval: ) | 02.05.1985 | Communication of intention to grant the patent | 29.06.1985 | Fee for grant paid | 29.06.1985 | Fee for publishing/printing paid | Opposition(s) | 22.08.1986 | No opposition filed within time limit [1986/45] | Fees paid | Renewal fee | 14.03.1984 | Renewal fee patent year 03 | 13.03.1985 | Renewal fee patent year 04 |
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