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EP0224182
European procedure
Extract from the Register of European Patents
EP About this file: EP0224182
| EP0224182 - Process for the preparation of a crystalline swellable sheet-like silicate of the saponite type [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 02.02.1991 Database last updated on 07.06.2024 | Most recent event Tooltip | 02.02.1991 | No opposition filed within time limit | published on 27.03.1991 [1991/13] | Applicant(s) | For all designated states HOECHST AKTIENGESELLSCHAFT 65926 Frankfurt am Main / DE | [N/P] |
| Former [1987/23] | For all designated states HOECHST AKTIENGESELLSCHAFT D-65926 Frankfurt am Main / DE | Inventor(s) | 01 /
Blumenthal, Thomas, Dr. Geisenheimer Strasse 88 D-6000 Frankfurt am Main 71 / DE | 02 /
Kalz, Hans-Jürgen, Dr. Gartenstrasse 32 D-6237 Liederbach / DE | [1987/23] | Application number, filing date | 86115963.0 | 18.11.1986 | [1987/23] | Priority number, date | DE19853541666 | 26.11.1985 Original published format: DE 3541666 | [1987/23] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0224182 | Date: | 03.06.1987 | Language: | DE | [1987/23] | Type: | A3 Search report | No.: | EP0224182 | Date: | 27.01.1988 | Language: | DE | [1988/04] | Type: | B1 Patent specification | No.: | EP0224182 | Date: | 11.04.1990 | Language: | DE | [1990/15] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.12.1987 | Classification | IPC: | C01B33/34 | [1990/15] | CPC: |
C11D3/1253 (EP,US);
C01B33/40 (EP,US)
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| Former IPC [1988/01] | C01B33/28 | ||
| Former IPC [1987/23] | C01B33/30 | Designated contracting states | BE, DE, FR, GB, IT, NL [1987/23] | Title | German: | Verfahren zur Herstellung eines kristallinen, quellfähigen Schichtsilikats vom Saponit-Typ | [1987/23] | English: | Process for the preparation of a crystalline swellable sheet-like silicate of the saponite type | [1987/23] | French: | Procédé de préparation d'un silicate en couches gonflables, cristallin, du type saponite | [1987/23] | Examination procedure | 09.03.1988 | Examination requested [1988/18] | 31.05.1989 | Despatch of communication of intention to grant (Approval: Yes) | 31.08.1989 | Communication of intention to grant the patent | 02.12.1989 | Fee for grant paid | 02.12.1989 | Fee for publishing/printing paid | Opposition(s) | 12.01.1991 | No opposition filed within time limit [1991/13] | Fees paid | Renewal fee | 11.10.1988 | Renewal fee patent year 03 | 12.10.1989 | 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]JP58181718 ; | [A]FR2189491 (NL INDUSTRIES INC [US]); | [AD]US3844879 (FLAIS L, et al); | [AD]DE3149131 (HENKEL KGAA [DE]) | [A] - CHEMICAL ABSTRACTS, Band 100, Nr. 14, 2. April 1984, Seite 142, Zusammenfassung Nr. 105900e, Columbus, Ohio, US; & JP-A-58 181 718 (KUNIMINE KOGYO K.K.) 24-10-1983, & JP58181718 A 00000000 |