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Extract from the Register of European Patents

EP About this file: EP0664602

EP0664602 - Flyback converter with regulated output voltage [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  23.10.1998
Database last updated on 20.05.2024
Most recent event   Tooltip23.10.1998No opposition filed within time limitpublished on 09.12.1998 [1998/50]
Applicant(s)For all designated states
SIEMENS AKTIENGESELLSCHAFT
Werner-von-Siemens-Str. 1
DE-80333 München / DE
[N/P]
Former [1997/51]For all designated states
SIEMENS AKTIENGESELLSCHAFT
Wittelsbacherplatz 2
80333 München / DE
Former [1995/30]For all designated states
SIEMENS AKTIENGESELLSCHAFT
Wittelsbacherplatz 2
D-80333 München / DE
Inventor(s)01 / Preis, Josef, Dipl.-Ing.
Zwillergasse 1
D-81245 München / DE
[1995/30]
Application number, filing date94100822.920.01.1994
[1995/30]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0664602
Date:26.07.1995
Language:DE
[1995/30]
Type: B1 Patent specification 
No.:EP0664602
Date:17.12.1997
Language:DE
[1997/51]
Search report(s)(Supplementary) European search report - dispatched on:EP21.06.1994
ClassificationIPC:H02M3/335
[1995/30]
CPC:
H02M3/33561 (EP,US); H02M1/009 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   IT,   LI,   PT,   SE [1995/30]
TitleGerman:Sperrumrichter mit geregelter Ausgangsspannung[1995/30]
English:Flyback converter with regulated output voltage[1995/30]
French:Convertisseur à récupération avec tension de sortie régulée[1995/30]
Examination procedure06.10.1995Examination requested  [1995/49]
09.04.1997Despatch of communication of intention to grant (Approval: Yes)
17.06.1997Communication of intention to grant the patent
02.09.1997Fee for grant paid
02.09.1997Fee for publishing/printing paid
Opposition(s)18.09.1998No opposition filed within time limit [1998/50]
Fees paidRenewal fee
19.01.1996Renewal fee patent year 03
21.01.1997Renewal fee patent year 04
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Documents cited:Search[A]JPS63287364  ;
 [A]DE3627858  (GOSSEN GMBH [DE]) [A] 1,4 * the whole document *;
 [A]EP0420074  (BULL HN INFORMATION SYST [IT]) [A] 1 * abstract *;
 [A]DE4021385  (PHILIPS PATENTVERWALTUNG [DE]) [A] 1,4 * the whole document *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19890322), vol. 13, no. 117, Database accession no. (E - 731), & JP63287364 A 19881124 (HITACHI) [A] 1,3 * abstract *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.