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EP0004225
European procedure
Extract from the Register of European Patents
EP About this file: EP0004225
| EP0004225 - Process for the manufacture of a synthetic silicoaluminate and products obtained [Right-click to bookmark this link] | Status | Patent revoked Status updated on 04.07.1988 Database last updated on 29.03.2025 | 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 RHONE-POULENC CHIMIE 25, Quai Paul Doumer 92408 Courbevoie Cédex / FR | [N/P] |
| Former [1987/47] | For all designated states RHONE-POULENC CHIMIE 25, Quai Paul Doumer F-92408 Courbevoie Cédex / FR | ||
| Former [1982/37] | For all designated states RHONE-POULENC CHIMIE DE BASE 25, quai Paul Doumer F-92408 Courbevoie / FR | ||
| Former [1982/28] | For all designated states RHONE-POULENC INDUSTRIES 22 Avenue Montaigne F-75008 Paris / FR | Inventor(s) | 01 /
Latourrette, Bertrand 4, Square Xavier Monteny F-93220 Gagny / FR | 02 /
Michel, Max 54, Cours Franklin Roosevelt F-69006 Lyon / FR | 03 /
Poisson, Régis Résidence des Hauts de Sèvres 3, allée des Acacias F-92310 Sevres / FR | 04 /
Aubry, Alain 40, rue de Toul F-75012 Paris / FR | [N/P] | Representative(s) | Dubruc, Philippe, et al RHONE-POULENC INTERSERVICES Service Brevets Chimie 25 Quai Paul-Doumer 92408 Courbevoie Cedex / FR | [N/P] |
| Former [1987/47] | Dubruc, Philippe, et al RHONE-POULENC INTERSERVICES Service Brevets Chimie 25, quai Paul-Doumer F-92408 Courbevoie Cédex / FR | ||
| Former [1982/28] | Martin, Henri RHONE-POULENC INTERSERVICES Service Brevets Chimie 25, quai Paul Doumer F-92408 Courbevoie Cédex / FR | ||
| Former [1982/28] | Martin, Henri RHONE-POULENC RECHERCHES Service Brevets Chimie et Polymères 25, quai Paul Doumer F-92408 Courbevoie Cedex / FR | Application number, filing date | 79400119.8 | 27.02.1979 | Priority number, date | FR19780005939 | 02.03.1978 Original published format: FR 7805939 | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0004225 | Date: | 19.09.1979 | Language: | FR | [N/P] | Type: | B1 Patent specification | No.: | EP0004225 | Date: | 14.07.1982 | Language: | FR | [1982/28] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 11.07.1979 | Classification | IPC: | C01B33/28, // C11D3/12 | [1982/28] | CPC: |
C01B33/2815 (EP);
C01B33/2892 (EP);
C01B39/02 (EP);
C11D3/128 (EP)
|
| Former IPC [1982/28] | C01B33/28, C11D3/12 | Designated contracting states | BE, DE, GB, IT, LU, NL | Title | German: | Verfahren zur Herstellung eines synthetischen Siliko-Aluminats und erhaltene Produkte | English: | Process for the manufacture of a synthetic silicoaluminate and products obtained | French: | Procédé de fabrication d'un silico-aluminate synthétique et produits obtenus | Examination procedure | 04.10.1979 | Examination requested | 01.02.1980 | Despatch of a communication from the examining division (Time limit: {0}) | 24.10.1980 | Despatch of a communication from the examining division (Time limit: M04) | 24.01.1981 | Reply to a communication from the examining division | 06.08.1981 | Despatch of a communication from the examining division (Time limit: M02) | 25.09.1981 | Reply to a communication from the examining division | 16.11.1981 | Despatch of communication of intention to grant (Approval: ) | 18.01.1982 | Communication of intention to grant the patent | 05.04.1982 | Fee for grant paid | 05.04.1982 | Fee for publishing/printing paid | Appeal following examination | Appeal received No. T273/84 | Opposition(s) | Opponent(s) | 01
13.04.1983
20.05.1983
ADMISSIBLE Degussa AG, Frankfurt - Zweigniederlassung Wolfgang- Postfach 13 45 D-63403 Hanau / DE | [N/P] |
| Former [1983/25] | |||
| Opponent(s) | 01
13.04.1983
20.05.1983
ADMISSIBLE Degussa AG, Frankfurt - Zweigniederlassung Wolfgang- Postfach 13 45 D-63403 Hanau / DE | 20.05.1983 | Invitation to proprietor to file observations on the notice of opposition | 10.09.1983 | Reply of patent proprietor to notice(s) of opposition | 08.12.1983 | Despatch of a communication from the opposition division (Time limit: M04) | 19.04.1984 | Reply to a communication from the opposition division | 26.08.1986 | Despatch of a communication from the opposition division (Time limit: M06) | 03.03.1987 | Reply to a communication from the opposition division | 15.02.1988 | Despatch of communication that the patent will be revoked | 25.02.1988 | Legal effect of revocation of patent [1988/34] | Appeal following opposition | 20.11.1984 | Appeal received No. T0273/84 | 20.11.1984 | Statement of grounds filed | Fees paid | Renewal fee | 09.02.1981 | Renewal fee patent year 03 | 12.02.1982 | 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. | Lapses during opposition Tooltip | LU | 28.02.1983 | [1999/52] | Documents cited: | Search | [AD]FR83942E ; | [A]US4075280 ; | [AD]FR2347322 ; | [P]FR2386484 ; | [AP]DE2722564 ; | [AP]DE2722535 |