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EP0457983
European procedure
Extract from the Register of European Patents
EP About this file: EP0457983
| EP0457983 - Cyclone separator including a hopper formed by water-steam cooled walls [Right-click to bookmark this link] | Status | Patent revoked Status updated on 20.04.2000 Database last updated on 03.04.2025 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states FOSTER WHEELER ENERGY CORPORATION Perryville Corporate Park Clinton New Jersey 08809-4000 / US | [N/P] |
| Former [1991/48] | For all designated states FOSTER WHEELER ENERGY CORPORATION Perryville Corporate Park Clinton New Jersey 08809-4000 / US | Inventor(s) | 01 /
Venkatraman, Seshamani 55 Cottage Place Gillette, New Jersey 07933 / US | [1991/48] | Representative(s) | Rackham, Anthony Charles, et al Lloyd Wise Commonwealth House, 1-19 New Oxford Street London WC1A 1LW / GB | [N/P] |
| Former [1996/28] | Rackham, Anthony Charles, et al Lloyd Wise, Tregear & Co., Commonwealth House, 1-19 New Oxford Street London WC1A 1LW / GB | ||
| Former [1991/48] | Hitchcock, Esmond Antony, et al Lloyd Wise, Tregear & Co. Norman House 105-109 Strand London WC2R 0AE / GB | Application number, filing date | 90305722.2 | 25.05.1990 | [1991/48] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0457983 | Date: | 27.11.1991 | Language: | EN | [1991/48] | Type: | B1 Patent specification | No.: | EP0457983 | Date: | 11.12.1996 | Language: | EN | [1996/50] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 28.01.1991 | Classification | IPC: | B04C5/20 | [1991/48] | CPC: |
B04C5/20 (EP,US);
B04C5/08 (EP,US);
F22B31/0084 (EP,US);
F23J15/027 (EP,US)
| Designated contracting states | ES, GB, IT, NL [1991/48] | Title | German: | Zyklonabscheider mit einem Trichterteil bestehend aus mit Wasserdampf gekühlten Wänden | [1991/48] | English: | Cyclone separator including a hopper formed by water-steam cooled walls | [1991/48] | French: | Cyclone comprenant une partie conique, constitué de parois refroidies par un mélange eau-vapeur | [1991/48] | Examination procedure | 26.05.1992 | Examination requested [1992/36] | 29.04.1993 | Despatch of a communication from the examining division (Time limit: M04) | 26.08.1993 | Reply to a communication from the examining division | 20.01.1994 | Despatch of a communication from the examining division (Time limit: M06) | 25.07.1994 | Reply to a communication from the examining division | 25.11.1994 | Despatch of a communication from the examining division (Time limit: M06) | 30.03.1995 | Reply to a communication from the examining division | 05.01.1996 | Despatch of communication of intention to grant (Approval: No) | 29.05.1996 | Despatch of communication of intention to grant (Approval: later approval) | 04.06.1996 | Communication of intention to grant the patent | 06.09.1996 | Fee for grant paid | 06.09.1996 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
08.09.1997
26.09.1997
ADMISSIBLE Alstom Energy Systems S.A. 19-21, Avenue Morane Saulnier, B.P. 74 78140 Velizy-Villacoublay / FR Opponent's representative Hasenrader, Hubert Karl Cabinet Beau de Loménie 158, rue de l'Université 75340 Paris Cédex 07 / FR | [N/P] |
| Former [1999/24] | |||
| Opponent(s) | 01
08.09.1997
26.09.1997
ADMISSIBLE Alstom Energy Systems S.A. 19-21, Avenue Morane Saulnier, B.P. 74 78140 Velizy-Villacoublay / FR Opponent's representative Hasenrader, Hubert Cabinet Beau de Loménie 158, rue de l'Université 75340 Paris Cédex 07 / FR | ||
| Former [1999/06] | |||
| Opponent(s) | 01
08.09.1997
26.09.1997
ADMISSIBLE GEC ALSTHOM Stein Industrie 19-21, avenue Morane Saulnier 78141 Velizy Villacoublay Cedex / FR Opponent's representative Hasenrader, Hubert Cabinet Beau de Loménie 158, rue de l'Université 75340 Paris Cédex 07 / FR | ||
| Former [1997/45] | |||
| Opponent(s) | 01
08.09.1997
26.09.1997
ADMISSIBLE GEC ALSTHOM Stein Industrie 19-21, avenue Morane Saulnier 78141 Velizy Villacoublay Cedex / FR Opponent's representative Fournier, Michel c/o ALCATEL ALSTHOM, Département de Propriété Industrielle, 30, avenue Kléber 75116 Paris / FR | 10.10.1997 | Invitation to proprietor to file observations on the notice of opposition | 20.04.1998 | Reply of patent proprietor to notice(s) of opposition | 20.01.1999 | Date of oral proceedings | 11.02.1999 | Despatch of minutes of oral proceedings | 04.04.2000 | Despatch of communication that the patent will be revoked | 14.04.2000 | Legal effect of revocation of patent [2000/23] | Appeal following opposition | 06.04.1999 | Appeal received No. T0347/99 | 09.06.1999 | Statement of grounds filed | 10.03.2000 | Result of appeal procedure: revocation of the patent | Fees paid | Renewal fee | 11.05.1992 | Renewal fee patent year 03 | 10.05.1993 | Renewal fee patent year 04 | 26.10.1994 | Renewal fee patent year 05 | 17.11.1995 | Renewal fee patent year 06 | 09.05.1996 | Renewal fee patent year 07 | Penalty fee | Additional fee for renewal fee | 31.05.1994 | 05 M06 Fee paid on 26.10.1994 | 31.05.1995 | 06 M06 Fee paid on 17.11.1995 |
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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]GB567450 (DAVID DALIN); | [Y]CH242089 (VON ROLL AG [CH]); | [A]US3732920 (KIMMEL J); | [X]SE437124 (GENERATOR IND AB [SE]); | [YD]EP0298671 (FOSTER WHEELER ENERGY CORP [US]); | [A]US4913711 (STEWART ROBERT D [US]); | [E]US4944250 (SESHAMANI VENKATRAMAN [US]) | Examination | US4746337 |