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EP0009849
European procedure
Extract from the Register of European Patents
EP About this file: EP0009849
| EP0009849 - A process for the purification of phosphoric acid [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 14.09.2016 Database last updated on 22.08.2024 | Most recent event Tooltip | 14.09.2016 | No opposition filed within time limit | Applicant(s) | For all designated states STAUFFER CHEMICAL COMPANY Westport Connecticut 06880 / US | [N/P] |
| Former [1980/12] | For all designated states STAUFFER CHEMICAL COMPANY Westport Connecticut 06880 / US | ||
| Former [1980/08] | For all designated states Stauffer Chemical Company Westport, Connecticut / US | Inventor(s) | 01 /
Jassal, Avtar Singh 21 High Street Katonah, New York 10936 / US | [1980/08] | Representative(s) | Urbanus, Henricus Maria, et al c/o Vereenigde Octrooibureaux Nieuwe Parklaan 107 2587 BP 's-Gravenhage / NL | [N/P] |
| Former [1980/08] | Urbanus, Henricus Maria, Ir., et al c/o Vereenigde Octrooibureaux Nieuwe Parklaan 107 NL-2587 BP 's-Gravenhage / NL | Application number, filing date | 79200554.8 | 28.09.1979 | [1980/08] | Priority number, date | US19780948113 | 02.10.1978 Original published format: US 948113 | [1980/08] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0009849 | Date: | 16.04.1980 | Language: | EN | [1980/08] | Type: | B1 Patent specification | No.: | EP0009849 | Date: | 09.03.1983 | Language: | EN | [1983/10] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 04.02.1980 | Classification | IPC: | C01B25/46 | [1980/08] | CPC: |
C01B25/461 (EP,US);
C01B25/462 (EP,US)
| Designated contracting states | BE, DE, FR, GB, IT, NL [1980/08] | Title | German: | Verfahren zur Reinigung von Phosphorsäure | [1980/08] | English: | A process for the purification of phosphoric acid | [1980/08] | French: | Procédé de purification de l'acide phosphorique | [1980/08] | Examination procedure | 15.10.1980 | Examination requested [1981/01] | 13.05.1981 | Despatch of a communication from the examining division (Time limit: M04) | 05.09.1981 | Reply to a communication from the examining division | 15.03.1982 | Despatch of communication of intention to grant (Approval: ) | 09.06.1982 | Communication of intention to grant the patent | 07.09.1982 | Fee for grant paid | 07.09.1982 | Fee for publishing/printing paid | Opposition(s) | 09.12.1983 | No opposition filed within time limit [ N /P ] | Fees paid | Renewal fee | 28.09.1981 | Renewal fee patent year 03 | 30.09.1982 | 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 | US3556739 [ ] (BANIEL AVRAHAM MATITIAHU, et al); | GB1210446 [ ] (PECHINEY SAINT GOBAIN [FR], et al); | DE884358 [ ] (GERARDO COLLARDIN); | US3872215 [ ] (CHERDRON EGON, et al); | DE2605106 [ ] (HOECHST AG); | US3595613 [ ] (KLINGELHOEFER WILLIAM C); | US3919396 [ ] (TOSHIMITSU ITARU, et al); | DE2657190 [ ] (HOECHST AG [DE]); | GB1476560 [ ] (RHONE POULENC IND) |