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EP0428797
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EP About this file: EP0428797
| EP0428797 - Process for preparation of aluminium borate whisker [Right-click to bookmark this link] | Status | The application is deemed to be withdrawn Status updated on 04.06.1992 Database last updated on 08.04.2026 | Most recent event Tooltip | 04.06.1992 | Application deemed to be withdrawn | published on 22.07.1992 [1992/30] | Applicant(s) | For all designated states SHIKOKU CHEMICALS CORPORATION 147-1-Minato-machi Marugame-shi Kagawa-ken / JP | [1991/22] | Inventor(s) | 01 /
Hata, Hajime 1231, Nakatsu-cho Marugame-shi Kagawa-ken / JP | 02 /
Kanbara, Hajime 11-7, Shioyacho 3-chome Marugame-shi Kagawa-ken / JP | [1991/22] | Representative(s) | Cresswell, Thomas Anthony, et al J.A. Kemp & Co. 14 South Square Gray's Inn London WC1R 5JJ / GB | [N/P] |
| Former [1991/22] | Cresswell, Thomas Anthony, et al J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5LX / GB | Application number, filing date | 89312002.2 | 20.11.1989 | [1991/22] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0428797 | Date: | 29.05.1991 | Language: | EN | [1991/22] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 06.08.1990 | Classification | IPC: | C30B29/62, C01B35/12 | [1991/22] | CPC: |
C30B9/00 (EP,US);
C30B29/10 (EP,US);
C30B29/62 (EP,US)
| Designated contracting states | DE, FR, GB [1991/22] | Title | German: | Verfahren zur Herstellung von Aluminiumborat-Whiskern | [1991/22] | English: | Process for preparation of aluminium borate whisker | [1991/22] | French: | Procédé pour la production de whiskers en borate d'aluminium | [1991/22] | File destroyed: | 21.02.2000 | Examination procedure | 30.11.1991 | Application deemed to be withdrawn, date of legal effect [1992/30] | 03.03.1992 | Despatch of communication that the application is deemed to be withdrawn, reason: examination fee not paid in time [1992/30] | Fees paid | Penalty fee | Penalty fee Rule 85b EPC 1973 | 07.01.1992 | M01 Not yet paid | Additional fee for renewal fee | 02.12.1991 | 03 M06 Not yet paid |
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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] EP0296779 (AGENCY IND SCIENCE TECHN et al.) | [A] US4789422 (MISRA CHANAKYA et al.) | [A] GB1387277 (MINNESOTA MINING & MFG et al.) | [AD] US3080242 (LESTER BERRY KENNETH et al.) |