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EP0328708
European procedure
Extract from the Register of European Patents
EP About this file: EP0328708
| EP0328708 - Process for cleaning exhaust air [Right-click to bookmark this link] | Status | Opposition rejected Status updated on 05.04.1994 Database last updated on 29.03.2025 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states Keramchemie GmbH Berggarten 1 56427 Siershahn / DE | [N/P] |
| Former [1989/34] | For all designated states Keramchemie GmbH Berggarten 1 D-56427 Siershahn / DE | Inventor(s) | 01 /
Schippert, Egbert, Dipl.-Chem. Dr. Am Metzenbäumchen 13 D-5419 Dierdorf-Brückrachdorf / DE | [1989/34] | Representative(s) | Kossobutzki, Walter Kutzenberger & Wolff Patentanwaltssozietät Waldstrasse 6 56244 Helferskirchen / DE | [N/P] |
| Former [1989/34] | Kossobutzki, Walter, Dipl.-Ing.(FH) Hochstrasse 7 D-56244 Helferskirchen / DE | Application number, filing date | 88102409.5 | 19.02.1988 | [1989/34] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0328708 | Date: | 23.08.1989 | Language: | DE | [1989/34] | Type: | B1 Patent specification | No.: | EP0328708 | Date: | 06.05.1992 | Language: | DE | [1992/19] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 10.11.1988 | Classification | IPC: | B01D53/00, B01D53/34 | [1989/34] | CPC: |
C02F3/085 (EP);
B01D53/14 (EP);
B01D53/84 (EP);
C02F3/025 (EP);
C02F3/34 (EP);
Y02A50/20 (EP);
Y02W10/10 (EP)
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| Designated contracting states | AT, BE, CH, FR, LI, NL, SE [1989/34] | Title | German: | Verfahren zur Reinigung von Abluft | [1989/34] | English: | Process for cleaning exhaust air | [1989/34] | French: | Procédé de purification de l'air d'échappement | [1989/34] | Examination procedure | 06.02.1990 | Examination requested [1990/14] | 15.01.1991 | Despatch of a communication from the examining division (Time limit: M04) | 14.05.1991 | Reply to a communication from the examining division | 27.08.1991 | Despatch of communication of intention to grant (Approval: Yes) | 17.09.1991 | Communication of intention to grant the patent | 09.12.1991 | Fee for grant paid | 09.12.1991 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
01.02.1993
16.02.1993
ADMISSIBLE Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern Bayerwerk D-51368 Leverkusen / DE | [N/P] |
| Former [1993/12] | |||
| Opponent(s) | 01
01.02.1993
16.02.1993
ADMISSIBLE Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern Bayerwerk D-51368 Leverkusen / DE | 11.03.1993 | Invitation to proprietor to file observations on the notice of opposition | 22.03.1994 | Date of despatch of rejection of opposition | 01.04.1994 | Legal effect of rejection of opposition [1994/21] | Appeal following opposition | 15.01.1994 | Appeal received No. T0034/94 | 15.01.1994 | Statement of grounds filed | 22.03.1994 | Result of appeal procedure: maintenance in unamended form | Fees paid | Renewal fee | 06.02.1990 | Renewal fee patent year 03 | 01.02.1991 | Renewal fee patent year 04 | 25.02.1992 | Renewal fee patent year 05 |
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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]DE3423285 (FUCHS UWE); | [A]EP0237001 (GEWERK KERAMCHEMIE [DE]); | [A]DE2643211 (GEWERK KERAMCHEMIE) |