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EP0168606
European procedure
Extract from the Register of European Patents
EP About this file: EP0168606
| EP0168606 - Process for producing alumina bodies [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 11.09.1993 Database last updated on 11.04.2026 | Most recent event Tooltip | 07.08.2009 | Change - representative | published on 09.09.2009 [2009/37] | Applicant(s) | For all designated states NORTON COMPANY 1 New Bond Street Worcester Massachusetts 01606 / US | [N/P] |
| Former [1986/04] | For all designated states NORTON COMPANY 1 New Bond Street Worcester Massachusetts 01606 / US | Inventor(s) | 01 /
Bauer, Ralph 6211 Pine Grove Avenue Niagara Falls Ontario L2G 4J1 / CA | [1986/04] | Representative(s) | Diehl & Partner Patent- und Rechtsanwaltskanzlei mbB Erika-Mann-Straße 9 80636 München / DE | [N/P] |
| Former [2009/37] | Diehl & Partner Patentanwälte Augustenstrasse 46 80333 München / DE | ||
| Former [1988/40] | DIEHL GLAESER HILTL & PARTNER Patentanwälte Postfach 19 03 65 D-80603 München / DE | ||
| Former [1986/04] | Ruschke, Olaf Patentanwälte Dipl. Ing. Olaf Ruschke Dipl. Ing. Hans E. Ruschke Dipl.-Ing. Jürgen Rost Dipl.-Chem Dr. U. Rotter Pienzenauerstrasse 2 D-81679 München / DE | Application number, filing date | 85106752.0 | 31.05.1985 | [1986/04] | Priority number, date | US19840620654 | 14.06.1984 Original published format: US 620654 | [1986/04] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0168606 | Date: | 22.01.1986 | Language: | EN | [1986/04] | Type: | A3 Search report | No.: | EP0168606 | Date: | 23.09.1987 | Language: | EN | [1987/39] | Type: | B1 Patent specification | No.: | EP0168606 | Date: | 11.11.1992 | Language: | EN | [1992/46] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 06.08.1987 | Classification | IPC: | C04B35/10 | [1986/04] | CPC: |
C09K3/1418 (EP);
C01F7/02 (KR);
C04B35/1115 (EP)
| Designated contracting states | AT, BE, CH, DE, FR, GB, IT, LI, NL, SE [1986/04] | Title | German: | Verfahren zur Herstellung von Tonerdekörpern | [1986/04] | English: | Process for producing alumina bodies | [1986/04] | French: | Procédé pour la fabrication de corps en alumine | [1986/04] | Examination procedure | 06.10.1987 | Examination requested [1987/49] | 21.11.1988 | Despatch of communication of intention to grant (Approval: No) | 19.05.1989 | Despatch of a communication from the examining division (Time limit: M06) | 29.11.1989 | Reply to a communication from the examining division | 24.10.1990 | Despatch of a communication from the examining division (Time limit: M06) | 03.05.1991 | Reply to a communication from the examining division | 06.05.1992 | Despatch of communication of intention to grant (Approval: later approval) | 14.05.1992 | Communication of intention to grant the patent | 13.08.1992 | Fee for grant paid | 13.08.1992 | Fee for publishing/printing paid | Opposition(s) | 12.08.1993 | No opposition filed within time limit [1993/44] | Fees paid | Renewal fee | 02.05.1987 | Renewal fee patent year 03 | 20.04.1988 | Renewal fee patent year 04 | 26.04.1989 | Renewal fee patent year 05 | 25.04.1990 | Renewal fee patent year 06 | 18.04.1991 | Renewal fee patent year 07 | 15.04.1992 | Renewal fee patent year 08 |
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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 | BE | 11.11.1992 | CH | 11.11.1992 | LI | 11.11.1992 | NL | 11.11.1992 | [1993/33] |
| Former [1993/23] | CH | 11.11.1992 | |
| LI | 11.11.1992 | ||
| NL | 11.11.1992 | ||
| Former [1993/21] | CH | 11.11.1992 | |
| LI | 11.11.1992 | Documents cited: | Search | [YD] 86th ANNUAL MEETING OF THE AMERICAN CERAMIC SOCIETY, COMMUNICATIONS OF THE AMERICAN CERAMIC SOCIETY, vol. 67, no. 11, November 1984, pages C-230-C-231, Pittsburg, PA, US; M. KUMAGAI et al.: "Enhanced densification of boehmite sol-gels by alpha-alumina seeding" | [A] CHEMICAL ABSTRACTS, VOL. 95, NO. 6, 10TH AUGUST 1981, PAGE 295, ABSTRACT NO. 47832Z, COLUMBUS, OHIO, US; & BR-A-79 02 063 (COLOROBBIA BRASILEIRA PRODUTOS PARA CERAMICA LTDA) 21-10-1980 | Examination | Kumagai and Messing: "Enhanced Densification of Boehmite Sol-Gels by @-Alumina Seeding", S. C-230 und C-231, Communication of the American Ceramic Society, November 1984 | Bailey and Barker: Ceramic Fibres for the Reinforcement of Gas Turbine Blades, published in Material Science Research 5, 1971, Plenum N.Y., pp 341 to 359 |