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Extract from the Register of European Patents

EP About this file: EP0283842

EP0283842 - Flyback switching converter [Right-click to bookmark this link]
StatusPatent revoked
Status updated on  16.03.1994
Database last updated on 08.10.2024
Most recent event   Tooltip23.11.2007Lapse of the patent in a contracting state
Updated state(s): FR		published on 26.12.2007  [2007/52]
Applicant(s)For all designated states
SIEMENS AKTIENGESELLSCHAFT
Werner-von-Siemens-Str. 1
DE-80333 München / DE
[N/P]
Former [1988/39]For all designated states
SIEMENS AKTIENGESELLSCHAFT
Wittelsbacherplatz 2
D-80333 München / DE
Inventor(s)01 / Kupka, Detlef, Dipl.-Ing. (FH)
Einsteinstrasse 12
D-8033 Martinsried / DE
[1988/39]
Application number, filing date88103635.408.03.1988
[1988/39]
Priority number, dateDE1987371018127.03.1987         Original published format: DE 3710181
[1988/39]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report 
No.:EP0283842
Date:28.09.1988
Language:DE
[1988/39]
Type: B1 Patent specification 
No.:EP0283842
Date:03.06.1992
Language:DE
[1992/23]
Search report(s)(Supplementary) European search report - dispatched on:EP04.07.1988
ClassificationIPC:H02M3/335
[1988/39]
CPC:
H02M3/33561 (EP,US)
Designated contracting statesAT,   CH,   DE,   FR,   GB,   IT,   LI,   NL [1988/39]
TitleGerman:Umrichterschaltung mit einem Eintakt-Sperrumrichter[1988/39]
English:Flyback switching converter[1988/39]
French:Convertisseur à découpage et récupération[1988/39]
Examination procedure26.01.1989Examination requested  [1989/13]
11.01.1991Despatch of a communication from the examining division (Time limit: M06)
28.06.1991Reply to a communication from the examining division
24.09.1991Despatch of communication of intention to grant (Approval: Yes)
27.11.1991Communication of intention to grant the patent
25.02.1992Fee for grant paid
25.02.1992Fee for publishing/printing paid
Opposition(s)Opponent(s)01  26.02.1993  08.04.1993  ADMISSIBLE
Philips Patentverwaltung GmbH
Wendestrasse 35, Postfach 10 51 49
2000 Hamburg 1 / DE
Opponent's representative
Peters, Carl Heinrich
Philips Intellectual Property & Standards GmbH
Postfach 50 04 42
52088 Aachen / DE
 [N/P]
Former [1993/16]
Opponent(s)01  26.02.1993  08.04.1993  ADMISSIBLE
Philips Patentverwaltung GmbH
Wendestrasse 35, Postfach 10 51 49
2000 Hamburg 1 / DE
Opponent's representative
Peters, Carl Heinrich, Dipl.-Ing.
Philips Patentverwaltung GmbH, Röntgenstrasse 24
D-22335 Hamburg / DE
15.04.1993Invitation to proprietor to file observations on the notice of opposition
07.12.1993Despatch of communication that the patent will be revoked
17.12.1993Legal effect of revocation of patent [1994/18]
Fees paidRenewal fee
28.03.1990Renewal fee patent year 03
20.12.1990Renewal fee patent year 04
25.03.1992Renewal 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  TooltipFR03.06.1992
GB03.06.1992
IT03.06.1992
NL03.06.1992
CH31.03.1993
LI31.03.1993
DE01.12.1993
[2006/14]
Former [1999/42]GB03.06.1992
IT03.06.1992
NL03.06.1992
FR23.10.1992
CH31.03.1993
LI31.03.1993
DE01.12.1993
Former [1994/22]GB03.06.1992
NL03.06.1992
FR23.10.1992
CH31.03.1993
LI31.03.1993
DE01.12.1993
Former [1994/04]GB03.06.1992
NL03.06.1992
FR23.10.1992
CH31.03.1993
LI31.03.1993
Former [1993/46]GB03.06.1992
NL03.06.1992
FR23.10.1992
Former [1993/21]NL03.06.1992
FR23.10.1992
Former [1993/03]NL03.06.1992
Documents cited:Search[A]FR2443763  (PHILIPS NV [NL]);
 [X]EP0178343  (HONEYWELL INF SYSTEMS [IT])
 [A]  - EDN MAGAZINE, Band 26, Nr. 3, Februar 1981, Seiten 95-108, Boston, Mass., US; E.R. TEJA: "The latest switchers allow you to take advantage of their low cost and small size in a wider variety of applications than ever"
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.