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EP0516944
European procedure
Extract from the Register of European Patents
EP About this file: EP0516944
| EP0516944 - Method of refining tungsten hexafluoride [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 25.10.1996 Database last updated on 03.09.2024 | Most recent event Tooltip | 13.06.2008 | Change - representative | published on 16.07.2008 [2008/29] | Applicant(s) | For all designated states CENTRAL GLASS COMPANY, LIMITED 5253, Oaza Okiube Ube City Yamaguchi Prefecture / JP | [N/P] |
| Former [1992/50] | For all designated states CENTRAL GLASS COMPANY, LIMITED 5253, Oaza Okiube Ube-city Yamaguchi-pref. / JP | Inventor(s) | 01 /
Suenaga, Takashi, c/o Ube Research Center Central Glass Company, Ltd., 5253 Oaza Okiube Ube City, Yamaguchi Prefecture / JP | 02 /
Ohashi, Mitsuya, c/o Ube Research Center Central Glass Company, Ltd., 5253 Oaza Okiube Ube City, Yamaguchi Prefecture / JP | 03 /
Yoneda, Takashi, c/o Ube Research Center Central Glass Company, Ltd., 5253 Oaza Okiube Ube City, Yamaguchi Prefecture / JP | 04 /
Kobayashi, Yoshiyuki, c/o Ube Research Center Central Glass Company, Ltd., 5253 Oaza Okiube Ube City, Yamaguchi Prefecture / JP | [1992/50] | Representative(s) | Manitz Finsterwald Patent- und Rechtsanwaltspartnerschaft mbB Postfach 31 02 20 80102 München / DE | [N/P] |
| Former [2008/29] | Manitz, Finsterwald & Partner GbR Postfach 31 02 20 80102 München / DE | ||
| Former [1992/50] | Dipl.-Phys.Dr. Manitz Dipl.-Ing. Finsterwald Dipl.-Ing. Grämkow Dipl.Chem.Dr. Heyn Dipl.Phys. Rotermund Morgan, B.Sc.(Phys.) Postfach 22 16 11 D-80506 München / DE | Application number, filing date | 92106073.7 | 08.04.1992 | [1992/50] | Priority number, date | JP19910113094 | 17.05.1991 Original published format: JP 11309491 | [1992/50] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0516944 | Date: | 09.12.1992 | Language: | EN | [1992/50] | Type: | B1 Patent specification | No.: | EP0516944 | Date: | 20.12.1995 | Language: | EN | [1995/51] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 15.10.1992 | Classification | IPC: | C01G41/04 | [1992/50] | CPC: |
C01G41/04 (EP,US)
| Designated contracting states | DE, FR, GB [1992/50] | Title | German: | Verfahren zur Reinigung von Wolframhexafluorid | [1992/50] | English: | Method of refining tungsten hexafluoride | [1992/50] | French: | Méthode de raffinage d'hexafluorure de tungstène | [1992/50] | Examination procedure | 25.03.1993 | Examination requested [1993/21] | 28.02.1995 | Despatch of communication of intention to grant (Approval: Yes) | 21.06.1995 | Communication of intention to grant the patent | 20.09.1995 | Fee for grant paid | 20.09.1995 | Fee for publishing/printing paid | Opposition(s) | 21.09.1996 | No opposition filed within time limit [1996/50] | Fees paid | Renewal fee | 12.04.1994 | Renewal fee patent year 03 | 11.04.1995 | 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 | [A]JP2124723 | [A] - PATENT ABSTRACTS OF JAPAN vol. 14, no. 342 (C-743)(4285) 24 July 1990 & JP-A-2 124 723 ( MITSUI TOATSU CHEM INC ) 14 May 1990, & JP2124723 A 19900514 |