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Extract from the Register of European Patents

EP About this file: EP0571372

EP0571372 - DC/DC-CONVERTER [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  30.08.1996
Database last updated on 31.08.2024
Most recent event   Tooltip07.12.2007Lapse of the patent in a contracting statepublished on 09.01.2008  [2008/02]
Applicant(s)For all designated states
SEIERSEN, Ole Steen
Georginevej 2
DK-2970 Horsholm / DK
[1993/48]
Inventor(s)01 / see applicant
...
[1993/48]
Representative(s)Wittrup, Flemming, et al
Zacco Denmark A/S
Hans Bekkevolds Allé 7
2900 Hellerup / DK
[N/P]
Former [1993/48]WITTRUP, Flemming, et al
c/o Hofman-Bang & Boutard A/S Adelgade 15
DK-1304 Copenhagen K / DK
Application number, filing date91901712.918.12.1990
[1993/48]
WO1990DK00331
Priority number, dateDK1989000646519.12.1989         Original published format: DK 646589
[1993/48]
Filing languageDA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO9109455
Date:27.06.1991
Language:EN
[1991/14]
Type: A1 Application with search report 
No.:EP0571372
Date:01.12.1993
Language:EN
The application published by WIPO in one of the EPO official languages on 27.06.1991 takes the place of the publication of the European patent application.
[1993/48]
Type: B1 Patent specification 
No.:EP0571372
Date:25.10.1995
Language:EN
[1995/43]
Search report(s)International search report - published on:SE27.06.1991
ClassificationIPC:H02M3/335
[1993/48]
CPC:
H02M3/33561 (EP,US); H02M3/3378 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1993/48]
TitleGerman:GLEICHSPANNUNGSWANDLER[1993/48]
English:DC/DC-CONVERTER[1993/48]
French:CONVERTISSEUR CONTINU-CONTINU[1993/48]
Entry into regional phase12.07.1991Translation filed 
19.06.1992National basic fee paid 
19.06.1992Designation fee(s) paid 
19.06.1992Examination fee paid 
Examination procedure15.07.1991Request for preliminary examination filed
International Preliminary Examining Authority: DE
19.06.1992Examination requested  [1993/48]
17.05.1994Despatch of a communication from the examining division (Time limit: M04)
26.09.1994Reply to a communication from the examining division
13.12.1994Despatch of communication of intention to grant (Approval: No)
19.04.1995Despatch of communication of intention to grant (Approval: later approval)
26.04.1995Communication of intention to grant the patent
18.07.1995Fee for grant paid
18.07.1995Fee for publishing/printing paid
Opposition(s)26.07.1996No opposition filed within time limit [1996/42]
Fees paidRenewal fee
03.12.1992Renewal fee patent year 03
14.08.1993Renewal fee patent year 04
03.12.1994Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT25.10.1995
BE25.10.1995
DK25.10.1995
ES25.10.1995
GR25.10.1995
IT25.10.1995
NL25.10.1995
LU31.12.1995
SE25.01.1996
[2008/02]
Former [2003/11]AT25.10.1995
BE25.10.1995
DK25.10.1995
ES25.10.1995
GR25.10.1995
IT25.10.1995
NL25.10.1995
LU31.12.1995
SE25.01.1996
Former [2002/25]AT25.10.1995
BE25.10.1995
CH25.10.1995
DK25.10.1995
ES25.10.1995
GR25.10.1995
IT25.10.1995
LI25.10.1995
LU31.12.1995
NL31.12.1995
SE25.01.1996
Former [2000/52]AT25.10.1995
BE25.10.1995
CH25.10.1995
DK25.10.1995
GR25.10.1995
IT25.10.1995
LI25.10.1995
LU31.12.1995
NL31.12.1995
SE25.01.1996
Former [2000/50]AT25.10.1995
BE25.10.1995
DK25.10.1995
GR25.10.1995
IT25.10.1995
LU31.12.1995
NL31.12.1995
SE25.01.1996
CH29.01.1996
LI29.01.1996
Former [2000/27]AT25.10.1995
BE25.10.1995
DK25.10.1995
GR25.10.1995
IT25.10.1995
LU31.12.1995
NL31.12.1995
SE25.01.1996
Former [2000/05]AT25.10.1995
BE25.10.1995
DK25.10.1995
GR25.10.1995
IT25.10.1995
LU31.12.1995
SE25.01.1996
Former [1999/42]AT25.10.1995
BE25.10.1995
DK25.10.1995
IT25.10.1995
SE25.01.1996
Former [1998/15]AT25.10.1995
BE25.10.1995
DK25.10.1995
SE25.01.1996
Former [1996/31]AT25.10.1995
BE25.10.1995
SE25.01.1996
Former [1996/28]AT25.10.1995
SE25.01.1996
Former [1996/23]SE25.01.1996
Cited inInternational search[A]SE8005577  ;
 [XA]EP0257817  (AMERICAN TELEPHONE & TELEGRAPH [US]);
 [XA]EP0343855  (AMERICAN TELEPHONE & TELEGRAPH [US])
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.