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EP0246074
European procedure
Extract from the Register of European Patents
EP About this file: EP0246074
| EP0246074 - Process for producing toner for developing electrostatic images [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 18.02.1993 Database last updated on 20.05.2024 | Most recent event Tooltip | 18.02.1993 | No opposition filed within time limit | published on 07.04.1993 [1993/14] | Applicant(s) | For all designated states CANON KABUSHIKI KAISHA 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo / JP | [N/P] |
| Former [1987/47] | For all designated states CANON KABUSHIKI KAISHA 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo / JP | Inventor(s) | 01 /
Kanda, Hitoshi 412-201 Hiyoshihoncho Kohoku-ku Yokohama-shi Kanagawa-ken / JP | 02 /
Kato, Masayoshi Canon-ryo 6-1-3 Miyazaki Miyamae-ku Kawasaki-shi Kanagawa-ken / JP | [1987/47] | Representative(s) | Beresford, Keith Denis Lewis, et al Beresford Crump LLP 16 High Holborn London WC1V 6BX / GB | [N/P] |
| Former [1987/47] | Beresford, Keith Denis Lewis, et al BERESFORD & Co. 2-5 Warwick Court High Holborn London WC1R 5DJ / GB | Application number, filing date | 87304223.8 | 12.05.1987 | [1987/47] | Priority number, date | JP19860106597 | 12.05.1986 Original published format: JP 10659786 | [1987/47] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0246074 | Date: | 19.11.1987 | Language: | EN | [1987/47] | Type: | A3 Search report | No.: | EP0246074 | Date: | 06.07.1988 | Language: | EN | [1988/27] | Type: | B1 Patent specification | No.: | EP0246074 | Date: | 15.04.1992 | Language: | EN | [1992/16] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 16.05.1988 | Classification | IPC: | B07B7/086 | [1987/47] | CPC: |
B07B7/086 (EP,US);
B07B7/0865 (EP,US);
G03G15/16 (KR);
G03G9/08 (KR)
| Designated contracting states | DE, FR, GB [1987/47] | Title | German: | Verfahren zur Erzeugung von Toner für die Entwicklung von elektrostatischen Bildern | [1987/47] | English: | Process for producing toner for developing electrostatic images | [1987/47] | French: | Procédé d'obtention de toner pour le développement d'images électrostatiques | [1987/47] | Examination procedure | 01.12.1988 | Examination requested [1989/05] | 06.09.1989 | Despatch of a communication from the examining division (Time limit: M06) | 08.03.1990 | Reply to a communication from the examining division | 27.08.1990 | Despatch of a communication from the examining division (Time limit: M04) | 27.12.1990 | Reply to a communication from the examining division | 31.07.1991 | Despatch of communication of intention to grant (Approval: Yes) | 11.10.1991 | Communication of intention to grant the patent | 04.11.1991 | Fee for grant paid | 04.11.1991 | Fee for publishing/printing paid | Opposition(s) | 16.01.1993 | No opposition filed within time limit [1993/14] | Fees paid | Renewal fee | 18.05.1989 | Renewal fee patent year 03 | 30.04.1990 | Renewal fee patent year 04 | 31.12.1990 | Renewal fee patent year 05 |
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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]DE2710543 (RUMPF LISELOTTE); | [A]US4132634 (RUMPF HANS, et al); | [A]FR1420733 ; | [A]EP0159163 (UNIV TORONTO [CA]) |