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EP0422974
European procedure
Extract from the Register of European Patents
EP About this file: EP0422974
| EP0422974 - Process and installation for the production of gaseous oxygen in variable quantities by the distillation of air [Right-click to bookmark this link] | Status | Patent revoked Status updated on 28.04.2000 Database last updated on 20.12.2024 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 75, Quai d'Orsay 75321 Paris Cédex 07 / FR | [N/P] |
| Former [1991/16] | For all designated states L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 75, Quai d'Orsay F-75321 Paris Cédex 07 / FR | Inventor(s) | 01 /
Darredeau, Bernard 14, rue des Pavillons F-78500 Sartrouville / FR | [1991/16] | Representative(s) | Le Moenner, Gabriel, et al L'AIR LIQUIDE, Société Anonyme pour l'étude et l'exploitation des procédés Georges Claude 75, Quai d'Orsay 75321 Paris Cédex 07 / FR | [N/P] |
| Former [1991/16] | Le Moenner, Gabriel, et al L'AIR LIQUIDE, Société Anonyme pour l'étude et l'exploitation des procédés Georges Claude 75, Quai d'Orsay F-75321 Paris Cédex 07 / FR | Application number, filing date | 90402596.2 | 20.09.1990 | [1991/16] | Priority number, date | FR19890013159 | 09.10.1989 Original published format: FR 8913159 | [1991/16] | Filing language | FR | Procedural language | FR | Publication | Type: | A1 Application with search report | No.: | EP0422974 | Date: | 17.04.1991 | Language: | FR | [1991/16] | Type: | B1 Patent specification | No.: | EP0422974 | Date: | 10.02.1993 | Language: | FR | [1993/06] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 17.01.1991 | Classification | IPC: | F25J3/04 | [1991/16] | CPC: |
F25J3/0409 (EP,US);
F25J3/04206 (EP,US);
F25J3/04303 (EP,US);
F25J3/04412 (EP,US);
F25J3/04515 (EP,US);
F25J2205/02 (EP,US);
| Designated contracting states | AT, BE, DE, ES, FR, GB, IT, NL, SE [1991/16] | Title | German: | Verfahren und Apparat zur Herstellung von Sauerstoffgas mit variablen Mengen durch Lufttrennung | [1991/16] | English: | Process and installation for the production of gaseous oxygen in variable quantities by the distillation of air | [1991/16] | French: | Procédé et installation de production d'oxygène gazeux à débit variable par distillation d'air | [1991/16] | Examination procedure | 24.09.1990 | Examination requested [1991/16] | 09.04.1992 | Despatch of communication of intention to grant (Approval: Yes) | 13.07.1992 | Communication of intention to grant the patent | 07.08.1992 | Fee for grant paid | 07.08.1992 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
10.11.1993
26.11.1993
ADMISSIBLE LINDE AKTIENGESELLSCHAFT Zentrale Patentabteilung D-82049 Höllriegelskreuth / DE | [1994/01] | 22.12.1993 | Invitation to proprietor to file observations on the notice of opposition | 20.04.1994 | Reply of patent proprietor to notice(s) of opposition | 14.12.1994 | Date of oral proceedings | 11.01.1995 | Despatch of minutes of oral proceedings | 11.01.1995 | Despatch of communication that the patent will be revoked | 30.09.1999 | Legal effect of revocation of patent [2000/24] | Appeal following opposition | 07.02.1995 | Appeal received No. T0141/95 | 02.05.1995 | Statement of grounds filed | 30.04.1997 | Invitation to file observations in an appeal (Time limit: M02) [1997/18] | 30.09.1999 | Result of appeal procedure: appeal of the proprietor was rejected | 30.09.1999 | Date of oral proceedings | 14.10.1999 | Minutes of the oral proceedings despatched | Fees paid | Renewal fee | 14.08.1992 | 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 | AT | 10.02.1993 | [1994/25] | Documents cited: | Search | [A]DE1250848 ; | [A]GB1178006 (AIR LIQUIDE [FR]); | [A]FR2335809 (LINDE AG [DE]) |