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EP0251322
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EP About this file: EP0251322
| EP0251322 - Method for refining non-oxide ceramic powders [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 09.07.1992 Database last updated on 09.05.2025 | Most recent event Tooltip | 09.07.1992 | Application deemed to be withdrawn | published on 26.08.1992 [1992/35] | Applicant(s) | For all designated states NIPPON KOKAN KABUSHIKI KAISHA 1-2 Marunouchi 1-chome Chiyoda-ku Tokyo 100 / JP | [N/P] |
| Former [1988/01] | For all designated states NIPPON KOKAN KABUSHIKI KAISHA 1-2 Marunouchi 1-chome Chiyoda-ku Tokyo 100 / JP | Inventor(s) | 01 /
Nishio, Hiroaki c/o Patent &Licence and Quality Standards Dpt. Nippon Kokan K.K. 1-2, Marunouchi 1-chome Chiyoda-ku Tokyo / JP | 02 /
Sato, Michitaka c/o Patent & Licence and Quality Standards Dpt. Nippon Kokan K.K. 1-2, Marunouchi 1-chome Chiyoda-ku Tokyo / JP | [1989/36] |
| Former [1988/01] | 01 /
Nishio, Hiroaki Patent & Licence and Quality Standards Dpt. Nippon Kokan K.K. 1-2, Marunouchi 1-chome Chiyoda-ku Tokyo / JP | ||
| 02 /
Sato, Michitaka Patent & Licence and Quality Standards Dpt. Nippon Kokan K.K. 1-2, Marunouchi 1-chome Chiyoda-ku Tokyo / JP | Representative(s) | Hansen, Bernd, et al Hoffmann Eitle Patent- und Rechtsanwälte Postfach 81 04 20 81904 München / DE | [N/P] |
| Former [1988/01] | Hansen, Bernd, Dr.rer.nat., et al Hoffmann, Eitle & Partner Patentanwälte Postfach 81 04 20 D-81904 München / DE | Application number, filing date | 87109546.9 | 02.07.1987 | [1988/01] | Priority number, date | JP19860154160 | 02.07.1986 Original published format: JP 15416086 | [1988/01] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0251322 | Date: | 07.01.1988 | Language: | EN | [1988/01] | Type: | A3 Search report | No.: | EP0251322 | Date: | 28.06.1989 | Language: | EN | [1989/26] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 08.05.1989 | Classification | IPC: | C04B35/56, C04B35/58 | [1988/01] | CPC: |
C04B35/65 (EP,US);
C01B21/062 (EP,US);
C01B21/064 (EP,US);
C01B21/0687 (EP,US);
C01B21/0728 (EP,US);
C01B21/0768 (EP,US);
C01B32/90 (EP,US);
C01B32/921 (EP,US);
C01B32/956 (EP,US);
C01B35/04 (EP,US);
C04B35/5611 (EP,US);
C04B35/563 (EP,US);
C04B35/565 (EP,US);
C04B35/58007 (EP,US);
C04B35/58014 (EP,US);
C04B35/58071 (EP,US);
C04B35/58078 (EP,US);
C04B35/583 (EP,US);
| Designated contracting states | DE, FR, GB, SE [1988/01] | Title | German: | Verfahren zur Raffinierung von nicht-oxidischen Keramikpulvern | [1988/01] | English: | Method for refining non-oxide ceramic powders | [1988/01] | French: | Procédé de purification de poudres céramiques sans oxyde | [1988/01] | File destroyed: | 12.06.1999 | Examination procedure | 02.07.1987 | Examination requested [1988/01] | 07.02.1991 | Despatch of a communication from the examining division (Time limit: M06) | 30.07.1991 | Reply to a communication from the examining division | 15.10.1991 | Despatch of a communication from the examining division (Time limit: M04) | 26.02.1992 | Application deemed to be withdrawn, date of legal effect [1992/35] | 02.04.1992 | Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time [1992/35] | Fees paid | Renewal fee | 31.07.1989 | Renewal fee patent year 03 | 31.07.1990 | Renewal fee patent year 04 | 31.07.1991 | Renewal fee patent year 05 |
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