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EP0067744
European procedure
Extract from the Register of European Patents
EP About this file: EP0067744
| EP0067744 - Process for the preparation of very divided alumina or alumina-magnesia spinels with a homogeneous porous structure [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 05.08.1985 Database last updated on 02.11.2024 | Most recent event Tooltip | 12.11.1999 | Lapse of the patent in a contracting state | published on 29.12.1999 [1999/52] | Applicant(s) | For all designated states CRICERAM 23, rue Balzac F-75008 Paris / FR | [1984/06] |
| Former [1982/51] | For all designated states P C U K PRODUITS CHIMIQUES UGINE KUHLMANN Service Propriété Industrielle Tour Manhattan F-92087 Paris La Défense 2 Cédex 21 / FR | Inventor(s) | 01 /
Bachelard, Roland 99, Grande-rue de la Guillotière F-69007 Lyon / FR | 02 /
Lamalle, Maurice Le Vieux Chêne 38, avenue Georges Clémenceau F-69230 Saint-Genis-Laval / FR | [1982/51] | Representative(s) | Pascaud, Claude, et al PECHINEY 28, rue de Bonnel F-69433 Lyon Cedex 3 / FR | [1984/06] |
| Former [1982/51] | Dorland, Anne-Marie ATOCHEM Service Propriété Industrielle Tour Manhattan Cédex 21 F-92091 Paris la Défense / FR | Application number, filing date | 82400958.3 | 25.05.1982 | [1982/51] | Priority number, date | FR19810010872 | 02.06.1981 Original published format: FR 8110872 | [1982/51] | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0067744 | Date: | 22.12.1982 | Language: | FR | [1982/51] | Type: | B1 Patent specification | No.: | EP0067744 | Date: | 10.10.1984 | Language: | FR | [1984/41] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.10.1982 | Classification | IPC: | C01F7/00, C01F7/32, C01F7/16, C01G1/02 | [1982/51] | CPC: |
C01F7/32 (EP,US);
E02D3/12 (KR);
B01D61/145 (EP,US);
B01D71/024 (EP,KR,US);
B01D71/025 (EP,US);
C01F7/162 (EP,US);
B01D2313/42 (EP,US);
C01P2002/32 (EP,US);
C01P2002/54 (EP,US);
C01P2006/11 (EP,US);
C01P2006/12 (EP,US);
C01P2006/14 (EP,US);
| Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE [1982/51] | Title | German: | Verfahren zur Herstellung von sehr verteilten Aluminiumoxiden oder Aluminium-Magnesium-Spinellen mit homogenen porösen Strukturen | [1982/51] | English: | Process for the preparation of very divided alumina or alumina-magnesia spinels with a homogeneous porous structure | [1982/51] | French: | Procédé de préparation d'alumines ou de spinelles alumine-magnésie très divisés à structure poreuse homogène | [1982/51] | Examination procedure | 28.05.1982 | Examination requested [1982/51] | 15.09.1983 | Despatch of a communication from the examining division (Time limit: M04) | 27.12.1983 | Reply to a communication from the examining division | 13.03.1984 | Despatch of communication of intention to grant (Approval: ) | 30.03.1984 | Communication of intention to grant the patent | 27.04.1984 | Fee for grant paid | 27.04.1984 | Fee for publishing/printing paid | Opposition(s) | 11.07.1985 | No opposition filed within time limit [1985/41] | Fees paid | Renewal fee | 09.04.1984 | Renewal fee patent year 03 |
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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. | Lapses during opposition Tooltip | LU | 31.05.1985 | [1999/52] | Documents cited: | Search | [Y]DE1619809 (SIEMENS AG); | [A]DE1592128 (KRETZSCHMAR GEB MENDTE CHARLOT); | [Y]DE2419544 (POLYSIUS AG); | [A]US4085201 (GRIFFITHS KENNETH F); | [XP]EP0043751 (CRICERAM [FR]) |