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EP0050936
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EP About this file: EP0050936
| EP0050936 - Improvements in or relating to the preparation of aqueous suspensions of talc [Right-click to bookmark this link] | Status | The application has been refused Status updated on 28.06.1984 Database last updated on 09.04.2026 | Most recent event Tooltip | 07.07.2007 | Change - inventor | published on 08.08.2007 [2007/32] | Applicant(s) | For all designated states ENGLISH CLAYS LOVERING POCHIN & COMPANY LIMITED John Keay House St. Austell Cornwall PL25 4DJ / GB | [N/P] |
| Former [1982/18] | For all designated states ENGLISH CLAYS LOVERING POCHIN & COMPANY LIMITED John Keay House St. Austell Cornwall PL25 4DJ / GB | Inventor(s) | 01 /
Gate, Leonard Farlam Tregenna Little Polgooth St. Austell Cornwall / GB | [1982/18] | Representative(s) | Bull, Michael Alan, et al Haseltine Lake LLP Lincoln House, 5th Floor 300 High Holborn London WC1V 7JH / GB | [N/P] |
| Former [1982/18] | Bull, Michael Alan, et al Haseltine Lake & Co. Hazlitt House 28 Southampton Buildings Chancery Lane London WC2A 1AT / GB | Application number, filing date | 81304757.8 | 13.10.1981 | [1982/18] | Priority number, date | GB19800034180 | 23.10.1980 Original published format: GB 8034180 | [1982/18] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0050936 | Date: | 05.05.1982 | Language: | EN | [1982/18] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 10.03.1982 | Classification | IPC: | C09C1/28 | [1982/18] | CPC: |
D21H19/40 (EP,US);
C09C1/28 (EP,US);
C01P2004/32 (EP,US);
C01P2004/51 (EP,US);
C01P2004/61 (EP,US);
C01P2006/22 (EP,US);
| Designated contracting states | AT, BE, CH, DE, FR, IT, LI, LU, NL, SE [1982/28] |
| Former [1982/18] | AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE | Title | German: | Herstellung wässeriger Talksuspensionen | [1982/18] | English: | Improvements in or relating to the preparation of aqueous suspensions of talc | [1982/18] | French: | Préparation de suspensions aqueuses de talc | [1982/18] | File destroyed: | 14.07.1990 | Examination procedure | 19.10.1981 | Examination requested [1982/18] | 04.02.1982 | Despatch of communication of loss of particular rights: designated state(s) GB | 15.04.1982 | Loss of particular rights, legal effect: designated state(s) | 11.01.1983 | Despatch of a communication from the examining division (Time limit: M04) | 06.05.1983 | Reply to a communication from the examining division | 02.08.1983 | Despatch of communication of intention to grant (Approval: ) | 21.10.1983 | Communication of intention to grant the patent | 08.03.1984 | Despatch of communication that the application is refused, reason: formalities examination [1984/35] | 18.03.1984 | Application refused, date of legal effect [1984/35] | Fees paid | Renewal fee | 07.10.1983 | Renewal fee patent year 03 | Penalty fee | Penalty fee Rule 85a EPC 1973 | 13.11.1981 | GB M02 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] JP52037930 | [A] CHEMICAL ABSTRACTS, Vol. 88, No. 12, 20th March 1978, page 111, column 1, No 76034b Columbus, Ohio, U.S.A. V.M. TOMILO et al.: "Bleaching of Talc" & Otkrytya, Izobet., Prom. Obraztsy, Tovarnye Znaki 1977, 54(41), 75 [A] | [A] CHEMICAL ABSTRACTS, Vol. 87, No. 4, July 1977, page 84, No. 24886r Columbus, Ohio, U.S.A. & JP-A-52 037 930 (Nihon Koken Kogyo Co., Ltd.) 24-03-1977 [A] |