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EP0641465
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EP About this file: EP0641465
| EP0641465 - ZERO-VOLTAGE COMPLEMENTARY SWITCHING HIGH EFFICIENCY CLASS D AMPLIFIER [Right-click to bookmark this link] | Status | The application has been refused Status updated on 03.05.2002 Database last updated on 19.10.2024 | Most recent event Tooltip | 03.05.2002 | Refusal of application | published on 19.06.2002 [2002/25] | Applicant(s) | For all designated states DIABLO RESEARCH CORPORATION 130 Kifer Court Sunnyvale CA 94086 / US | [N/P] |
| Former [1995/10] | For all designated states DIABLO RESEARCH CORPORATION 130 Kifer Court Sunnyvale, CA 94086 / US | Inventor(s) | 01 /
SIAO, Roger 500 West Middlefield Road, 111 Mountain View, CA 94043 / US | [1995/10] | Representative(s) | Melzer, Wolfgang Mitscherlich PartmbB Patent- und Rechtsanwälte Postfach 33 06 09 80066 München / DE | [N/P] |
| Former [1995/10] | Melzer, Wolfgang, Dipl.-Ing. Patentanwälte, Mitscherlich & Partner, Sonnenstrasse 33 D-80331 München / DE | Application number, filing date | 93913836.8 | 17.05.1993 | [1995/10] | WO1993US04466 | Priority number, date | US19920887168 | 20.05.1992 Original published format: US 887168 | [1995/10] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO9323798 | Date: | 25.11.1993 | Language: | EN | [1993/28] | Type: | A1 Application with search report | No.: | EP0641465 | Date: | 08.03.1995 | Language: | EN | The application published by WIPO in one of the EPO official languages on 25.11.1993 takes the place of the publication of the European patent application. | [1995/10] | Search report(s) | International search report - published on: | US | 25.11.1993 | (Supplementary) European search report - dispatched on: | EP | 14.08.1997 | Classification | IPC: | G05F1/00, H03F3/217, H05B41/29 | [1997/40] | CPC: |
H05B41/2813 (EP,US);
H03F3/2171 (EP,US);
Y02B20/00 (EP,US)
|
| Former IPC [1995/10] | G05F1/00 | Designated contracting states | DE, FR, GB, IT, NL [1995/10] | Title | German: | NULLSPANNUNGSKOMPLEMENTÄR GESCHALTETER KLASSE-D VERSTÄRKER MIT HOHEM WIRKUNGSGRAD | [1995/10] | English: | ZERO-VOLTAGE COMPLEMENTARY SWITCHING HIGH EFFICIENCY CLASS D AMPLIFIER | [1995/10] | French: | AMPLIFICATEUR DE CLASSE D A HAUT RENDEMENT REALISANT UNE COMMUTATION COMPLEMENTAIRE A LA TENSION ZERO | [1995/10] | Entry into regional phase | 29.11.1994 | National basic fee paid | 29.11.1994 | Search fee paid | 29.11.1994 | Designation fee(s) paid | 29.11.1994 | Examination fee paid | Examination procedure | 17.12.1993 | Request for preliminary examination filed International Preliminary Examining Authority: DE | 29.11.1994 | Examination requested [1995/10] | 06.10.1998 | Despatch of a communication from the examining division (Time limit: M06) | 06.04.1999 | Reply to a communication from the examining division | 12.07.1999 | Despatch of a communication from the examining division (Time limit: M04) | 15.11.1999 | Reply to a communication from the examining division | 18.04.2000 | Despatch of a communication from the examining division (Time limit: M04) | 27.07.2000 | Reply to a communication from the examining division | 25.09.2000 | Despatch of a communication from the examining division (Time limit: M02) | 05.10.2000 | Reply to a communication from the examining division | 04.09.2001 | Despatch of communication of intention to grant (Approval: ) | 21.01.2002 | Despatch of communication that the application is deemed to be withdrawn, reason: renewal fee not paid in time | 20.02.2002 | Despatch of communication that the application is refused, reason: formalities examination [2002/25] | 02.03.2002 | Application refused, date of legal effect [2002/25] | Fees paid | Renewal fee | 30.05.1995 | Renewal fee patent year 03 | 22.04.1996 | Renewal fee patent year 04 | 28.04.1997 | Renewal fee patent year 05 | 22.04.1998 | Renewal fee patent year 06 | 03.05.1999 | Renewal fee patent year 07 | 04.05.2000 | Renewal fee patent year 08 | Penalty fee | Additional fee for renewal fee | 31.05.2001 | 09 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]US3699466 (UCHIYAMA YASUJI) [A] 1,3-23* abstract * | International search | [X]US4383203 (STANLEY CHARLES A); | [Y]US5023566 (EL-HAMAMSY SAYED-AMR A [US], et al); | [YP]US5118997 (EL-HAMAMSY SAYED-AMR A [US]); | [YE]US5218315 (TURNER WHEELER MC [US]) |