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EP0469821
European procedure
Extract from the Register of European Patents
EP About this file: EP0469821
| EP0469821 - Switch mode power supply [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 30.09.1995 Database last updated on 20.07.2024 | Most recent event Tooltip | 30.09.1995 | No opposition filed within time limit | published on 22.11.1995 [1995/47] | Applicant(s) | For all designated states International Business Machines Corporation New Orchard Road Armonk, NY 10504 / US | [N/P] |
| Former [1992/06] | For all designated states International Business Machines Corporation Old Orchard Road Armonk, N.Y. 10504 / US | Inventor(s) | 01 /
Kobayashi, Masaki C-906, 1223 Yamazaki-cho Machida-shi, Tokyo-to / JP | 02 /
Mori, Masaki 2557-5 Sugikubo Ebina-shi, Kanagawa-ken / JP | 03 /
Morimoto, Norishige 1-2-25-402 Ohkura Setagaya-ku, Tokyo-to / JP | [1992/06] | Representative(s) | Burt, Roger James IBM United Kingdom Limited Intellectual Property Department Hursley Park Winchester Hampshire SO21 2JN / GB | [N/P] |
| Former [1993/40] | Burt, Roger James, Dr. IBM United Kingdom Limited Intellectual Property Department Hursley Park Winchester Hampshire SO21 2JN / GB | ||
| Former [1992/06] | Blakemore, Frederick Norman IBM United Kingdom Limited Intellectual Property Department Hursley Park Winchester Hampshire SO21 2JN / GB | Application number, filing date | 91306914.2 | 29.07.1991 | [1992/06] | Priority number, date | JP19900205273 | 03.08.1990 Original published format: JP 20527390 | [1992/06] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0469821 | Date: | 05.02.1992 | Language: | EN | [1992/06] | Type: | A3 Search report | No.: | EP0469821 | Date: | 06.05.1992 | Language: | EN | [1992/19] | Type: | B1 Patent specification | No.: | EP0469821 | Date: | 30.11.1994 | Language: | EN | [1994/48] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 19.03.1992 | Classification | IPC: | H02M3/335, H02M3/338, H02M3/28, H04N3/185 | [1992/19] | CPC: |
H04N3/185 (EP,US);
H02M3/33507 (EP,US)
|
| Former IPC [1992/06] | H02M3/335, H04N3/185 | Designated contracting states | DE, FR, GB [1992/06] | Title | German: | Schaltnetzteil | [1992/06] | English: | Switch mode power supply | [1992/06] | French: | Alimentation à découpage | [1992/06] | Examination procedure | 19.06.1992 | Examination requested [1992/33] | 13.08.1993 | Despatch of a communication from the examining division (Time limit: M04) | 26.11.1993 | Reply to a communication from the examining division | 18.02.1994 | Despatch of communication of intention to grant (Approval: Yes) | 30.05.1994 | Communication of intention to grant the patent | 10.06.1994 | Fee for grant paid | 10.06.1994 | Fee for publishing/printing paid | Opposition(s) | 31.08.1995 | No opposition filed within time limit [1995/47] | Fees paid | Renewal fee | 16.07.1993 | Renewal fee patent year 03 | 18.07.1994 | 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 | [AD] - IBM TECHNICAL DISCLOSURE BULLETIN. vol. 29, no. 11, April 1987, NEW YORK US pages 4948 - 4949; 'SWITCHED POWER SUPPLY SYNCHRONIZED TO DISPLAY' | [AD] - IBM TECHNICAL DISCLOSURE BULLETIN. vol. 29, no. 9, February 1987, NEW YORK US pages 3921 - 3922; 'SWITCHED POWER SUPPLY FOR CRT DISPLAY' |