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EP0029590
European procedure
Extract from the Register of European Patents
EP About this file: EP0029590
| EP0029590 - Method for producing optical glass [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 28.01.1985 Database last updated on 24.07.2024 | Most recent event Tooltip | 28.01.1985 | No opposition filed within time limit | published on 03.04.1985 [1985/14] | Applicant(s) | For all designated states Hitachi, Ltd. 5-1, Marunouchi 1-chome Chiyoda-ku Tokyo 100 / JP | [N/P] |
| Former [1981/22] | For all designated states Hitachi, Ltd. 5-1, Marunouchi 1-chome Chiyoda-ku, Tokyo 100 / JP | Inventor(s) | 01 /
Matsuyama, Iwao 1125-5, Aihara Sagamihara-shi Kanagawa-ken / JP | 02 /
Susa, Kenzo 2196-81, Hirai Hinodemachi Nishitama-gun Tokyo / JP | 03 /
Satoh, Shin 2-12-6-201, Kasuga-cho Iruma-shi Saitama-ken / JP | 04 /
Suganuma, Tsuneo 5-17-5, Nakaarai Tokorozawa-shi Saitama-ken / JP | [1981/22] | Representative(s) | Strehl, Peter, et al Patentanwälte Strehl Schübel-Hopf & Partner Maximilianstrasse 54 80538 München / DE | [N/P] |
| Former [1983/04] | Strehl, Peter, Dipl.-Ing., et al Patentanwälte Strehl Schübel-Hopf Groening u. Partner Postfach 22 14 55 D-80504 München / DE | ||
| Former [1981/22] | Strehl, Peter, Dipl.-Ing. K.L. Schiff Dr. A. v. Funer Dipl.-Ing. P. Strehl Dr. U. Schübel-Hopf Dipl.-Ing. D. Ebbinghaus Dr.-Ing. D. Finck Patentanwälte Mariahilfplatz 2 & 3 D-8000 München 90 / DE | Application number, filing date | 80107254.7 | 20.11.1980 | [1981/22] | Priority number, date | JP19790150082 | 21.11.1979 Original published format: JP 15008279 | JP19790169335 | 27.12.1979 Original published format: JP 16933579 | JP19800095755 | 15.07.1980 Original published format: JP 9575580 | JP19800095758 | 15.07.1980 Original published format: JP 9575880 | [1981/22] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0029590 | Date: | 03.06.1981 | Language: | EN | [1981/22] | Type: | B1 Patent specification | No.: | EP0029590 | Date: | 21.03.1984 | Language: | EN | [1984/12] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 12.02.1981 | Classification | IPC: | C03B37/025, C03C13/00, C03B19/06, C03B40/02 | [1981/22] | CPC: |
C01B33/163 (EP,US);
C03B19/12 (EP,US);
C03B37/016 (EP,US);
C03C13/045 (EP,US);
C03C3/04 (EP,US);
Y02P40/57 (EP,US);
Y10S65/901 (EP,US)
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| Designated contracting states | DE, FR, GB, NL [1981/22] | Title | German: | Verfahren zum Herstellen optischen Glases | [1981/22] | English: | Method for producing optical glass | [1981/22] | French: | Procédé de préparation de verre optique | [1981/22] | File destroyed: | 20.04.2002 | Examination procedure | 15.10.1981 | Examination requested [1981/52] | 12.08.1982 | Despatch of a communication from the examining division (Time limit: M04) | 22.12.1982 | Reply to a communication from the examining division | 30.05.1983 | Despatch of communication of intention to grant (Approval: ) | 24.08.1983 | Communication of intention to grant the patent | 25.11.1983 | Fee for grant paid | 25.11.1983 | Fee for publishing/printing paid | Opposition(s) | 22.12.1984 | No opposition filed within time limit [1985/14] | Fees paid | Renewal fee | 26.11.1982 | Renewal fee patent year 03 | 25.11.1983 | Renewal fee patent year 04 |
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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 | DE3001792 [ ] (HITACHI LTD); | LU80111 [ ]; | US4140834 [ ] (MARCANTONIO ARNOLD F, et al); | US4098595 [ ] (LENZ ARNOLD, et al) | [ ] - GLASS TECHNOLOGY, Vol. 20, No. 4, August 1979 K. KAMIYA et al. "Preparation of Silica Glass Fibres and Transparent Silica Glass from Silicon Tetraethoxide" page 39 A, Abstract No. 4161 & YOGYO-KYOKAI-SHI, Vol. 86, 1978 pages 552 to 559. |