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EP0622336
European procedure
Extract from the Register of European Patents
EP About this file: EP0622336
| EP0622336 - Method for the preparation of a rare earth oxide powder [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 01.08.1997 Database last updated on 13.11.2024 | Most recent event Tooltip | 01.08.1997 | No opposition filed within time limit | published on 17.09.1997 [1997/38] | Applicant(s) | For all designated states Shin-Etsu Chemical Co., Ltd. 6-1, Otemachi 2-chome Chiyoda-ku Tokyo / JP | [N/P] |
| Former [1994/44] | For all designated states SHIN-ETSU CHEMICAL CO., LTD. 6-1, Ohtemachi 2-chome Chiyoda-ku Tokyo / JP | Inventor(s) | 01 /
Kimura, Yuji 319, 1-13, Kitago 4-chome Takefu-shi, Fukui-ken / JP | 02 /
Sakai, Shigeru 12-3-16, Shimoohda-cho Takefu-shi, Fujui-ken / JP | [1994/44] | Representative(s) | Armengaud Ainé, Alain, et al Cabinet ARMENGAUD AINE 3 Avenue Bugeaud 75116 Paris / FR | [N/P] |
| Former [1994/44] | Armengaud Ainé, Alain, et al Cabinet ARMENGAUD AINE 3 Avenue Bugeaud F-75116 Paris / FR | Application number, filing date | 94400819.2 | 14.04.1994 | [1994/44] | Priority number, date | JP19930101104 | 27.04.1993 Original published format: JP 10110493 | [1994/44] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0622336 | Date: | 02.11.1994 | Language: | EN | [1994/44] | Type: | B1 Patent specification | No.: | EP0622336 | Date: | 25.09.1996 | Language: | EN | [1996/39] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 21.07.1994 | Classification | IPC: | C01F17/00 | [1994/44] | CPC: |
C01F17/247 (EP,US);
C01F17/224 (EP,US);
C01F17/229 (EP,US)
| Designated contracting states | DE, FR, GB [1994/44] | Title | German: | Verfahren zur Herstellung eines Seltene-Erden-Oxyd-Pulvers | [1994/44] | English: | Method for the preparation of a rare earth oxide powder | [1994/44] | French: | Méthode de préparation d'une poudre d'oxyde de terre rare | [1994/44] | Examination procedure | 26.11.1994 | Examination requested [1995/04] | 16.02.1996 | Despatch of communication of intention to grant (Approval: Yes) | 20.03.1996 | Communication of intention to grant the patent | 22.04.1996 | Fee for grant paid | 22.04.1996 | Fee for publishing/printing paid | Opposition(s) | 26.06.1997 | No opposition filed within time limit [1997/38] | Fees paid | Renewal fee | 25.03.1996 | 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]DE2915396 (SJELDNE JORDARTER FORSKNING) [A] 1* claim 1 *; | [A]US4497785 (TILLEY GEORGE L [US], et al) [A] 1 * claims 1,11,14 * |