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EP0524436
European procedure
Extract from the Register of European Patents
EP About this file: EP0524436
| EP0524436 - Process for the preparation of alpha aluminiumoxide based sintered material specially useful for an abrasive agent [Right-click to bookmark this link] | Status | Opposition procedure closed Status updated on 18.10.1996 Database last updated on 29.07.2024 | Most recent event Tooltip | 18.10.1996 | Opposition procedure terminated - date of legal effect published | published on 04.12.1996 [1996/49] | Applicant(s) | For all designated states H.C. Starck GmbH & Co. KG Im Schleeke 78-91 38642 Goslar / DE | [N/P] |
| Former [1994/19] | For all designated states H.C. Starck GmbH & Co. KG Im Schleeke 78-91 D-38642 Goslar / DE | ||
| Former [1993/04] | For all designated states LONZA AG CH-3945 Gampel/Wallis / CH | Inventor(s) | 01 /
van Dijen, Franciscus, Dr.-Ing. Jestetter Strasse 5A 7891 Dettighofen / DE | [1993/04] | Representative(s) | Steiling, Lothar, et al Bayer AG BAG-LP-IPM Gebäude Q 18 51368 Leverkusen / DE | [N/P] |
| Former [1994/45] | Steiling, Lothar, Dr., et al Bayer AG Konzernzentrale RP Patente Konzern D-51368 Leverkusen / DE | ||
| Former [1993/04] | Weinhold, Peter, Dr. Patentanwälte Dr. Weinhold, Dannenberg, Dr. Gudel, Schubert Siegfriedstrasse 8 D-80803 München / DE | Application number, filing date | 92110426.1 | 19.06.1992 | [1993/04] | Priority number, date | CH19910001844 | 21.06.1991 Original published format: CH 184491 | [1993/04] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0524436 | Date: | 27.01.1993 | Language: | DE | [1993/04] | Type: | B1 Patent specification | No.: | EP0524436 | Date: | 24.08.1994 | Language: | DE | [1994/34] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 17.11.1992 | Classification | IPC: | C01F7/02, C04B35/10, C09K3/14 | [1993/04] | CPC: |
C01F7/441 (EP,US);
C04B35/1115 (EP,US);
C09K3/1409 (EP,US);
C01P2002/60 (EP,US)
| Designated contracting states | AT, BE, CH, DE, ES, FR, GB, IT, LI, NL, PT, SE [1993/04] | Title | German: | Verfahren zur Herstellung von gesintertem Material auf Basis von alpha-Aluminiumoxid, insbesondere für Schleifmittel | [1993/04] | English: | Process for the preparation of alpha aluminiumoxide based sintered material specially useful for an abrasive agent | [1993/04] | French: | Procédé de préparation de materiau fritté à base d'oxyde d'aluminium alpha, en particulier pour être un agent abrasif | [1993/04] | Examination procedure | 09.12.1992 | Examination requested [1993/06] | 09.12.1992 | Request for accelerated examination filed | 02.03.1993 | Despatch of a communication from the examining division (Time limit: M04) | 02.03.1993 | Decision about request for accelerated examination - accepted: Yes | 12.07.1993 | Reply to a communication from the examining division | 04.11.1993 | Despatch of communication of intention to grant (Approval: Yes) | 25.01.1994 | Communication of intention to grant the patent | 26.04.1994 | Fee for grant paid | 26.04.1994 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
23.05.1995
03.07.1995
ADMISSIBLE Vereinigte Schmirgel- und Maschinen-Fabriken AG Siegmundstrasse 17 D-30165 Hannover / DE Opponent's representative König, Norbert Brümmerstedt Oelfke Seewald & König Anwaltskanzlei Postfach 10 26 30010 Hannover / DE | [N/P] |
| Former [1995/29] | |||
| Opponent(s) | 01
23.05.1995
03.07.1995
ADMISSIBLE Vereinigte Schmirgel- und Maschinen-Fabriken AG Siegmundstrasse 17 D-30165 Hannover / DE Opponent's representative König, Norbert, Dipl.-Phys. Dr. Patentanwälte Leine & König Burckhardtstrasse 1 D-30163 Hannover / DE | 06.07.1995 | Invitation to proprietor to file observations on the notice of opposition | 08.11.1995 | Reply of patent proprietor to notice(s) of opposition | 29.12.1995 | Despatch of communication that the opposition procedure will be closed | 08.01.1996 | Legal effect of closure of opposition procedure [1996/49] | Fees paid | Renewal fee | 21.06.1994 | 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. | Documents cited: | Search | [A]DE2816194 (GIULINI CHEMIE); | [A]GB2099012 (KENNECOTT CORP); | [A]GB2108949 (MAGYAR ALUMINIUM); | [A]EP0248788 (TREIBACHER CHEMISCHE WERKE AG [AT]); | [A]EP0263810 (TREIBACHER CHEMISCHE WERKE AG [AT]) |