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EP0604206
European procedure
Extract from the Register of European Patents
EP About this file: EP0604206
| EP0604206 - Push-pull-type amplifier circuit [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 14.08.1998 Database last updated on 19.10.2024 | Most recent event Tooltip | 14.08.1998 | No opposition filed within time limit | published on 30.09.1998 [1998/40] | Applicant(s) | For all designated states NEC Corporation 7-1, Shiba 5-chome Minato-ku Tokyo 108-8001 / JP | [N/P] |
| Former [1994/26] | For all designated states NEC CORPORATION 7-1, Shiba 5-chome Minato-ku Tokyo / JP | Inventor(s) | 01 /
Arai, Masanobu, c/o NEC Corporation 7-1, Shiba 5-chome, Minato-ku Tokyo / JP | 02 /
Edasawa, Noriaki, c/o NEC Engineering, Ltd. 20-4, Nishishinbashi 3-chome Minato-ku, Tokyo / JP | [1994/26] | Representative(s) | Moir, Michael Christopher, et al Mathys & Squire LLP 120 Holborn London EC1N 2SQ / GB | [N/P] |
| Former [1994/26] | Moir, Michael Christopher, et al Mathys & Squire 100 Grays Inn Road London WC1X 8AL / GB | Application number, filing date | 93310405.1 | 22.12.1993 | [1994/26] | Priority number, date | JP19920342670 | 22.12.1992 Original published format: JP 34267092 | [1994/26] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0604206 | Date: | 29.06.1994 | Language: | EN | [1994/26] | Type: | B1 Patent specification | No.: | EP0604206 | Date: | 08.10.1997 | Language: | EN | [1997/41] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 05.04.1994 | Classification | IPC: | H03F1/30, H03F3/30 | [1994/26] | CPC: |
H03F1/308 (EP,US);
H03F3/3001 (EP,US)
| Designated contracting states | DE, FR, GB [1994/26] | Title | German: | Gegentaktverstärkerschaltung | [1994/26] | English: | Push-pull-type amplifier circuit | [1994/26] | French: | Circuit amplificateur du type push-pull | [1994/26] | Examination procedure | 25.05.1994 | Examination requested [1994/30] | 29.05.1996 | Despatch of a communication from the examining division (Time limit: M04) | 27.09.1996 | Reply to a communication from the examining division | 23.12.1996 | Despatch of communication of intention to grant (Approval: Yes) | 08.04.1997 | Communication of intention to grant the patent | 16.05.1997 | Fee for grant paid | 16.05.1997 | Fee for publishing/printing paid | Opposition(s) | 09.07.1998 | No opposition filed within time limit [1998/40] | Fees paid | Renewal fee | 15.12.1995 | Renewal fee patent year 03 | 13.12.1996 | 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 | [X]US5057789 (NAGARAJ KRISHNASWAMY [US]) [X] 1-3 * column W *; | [A]EP0318396 (FUJITSU LTD [JP]) [A] 4 * page 3, line 34 - page 6, line 20; figure 4 *; | [A]EP0123275 (TOSHIBA KK [JP]) [A] 1-3 * page 11, line 30 - page 13, line 23; figures 4,5 *; | [PX]WO9306655 (SIERRA SEMICONDUCTOR BV [NL]) [PX] 1-3 * the whole document * |