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Extract from the Register of European Patents

EP About this file: EP0387435

EP0387435 - Control arrangement for a switched mode power supply [Right-click to bookmark this link]
StatusThe application has been refused
Status updated on  07.12.1993
Database last updated on 03.10.2024
Most recent event   Tooltip07.12.1993Refusal of applicationpublished on 26.01.1994 [1994/04]
Applicant(s)For all designated states
Farnell Instruments Limited
Sandbeck Way Wetherby
West Yorkshire LS22 4DH / GB
[N/P]
Former [1990/38]For all designated states
FARNELL INSTRUMENTS LIMITED
Sandbeck Way
Wetherby West Yorkshire LS22 4DH / GB
Inventor(s)01 / Shires, Jonathan Littlebeck
Old Mill Lane Clifford
Wetherby West Yorkshire LS23 6LE / GB
02 / Turner, John
6 Deighton Road
Wetherby West Yorkshire LS22 4TE / GB
[1990/38]
Representative(s)Denmark, James
Bailey, Walsh & Co. 5 York Place Leeds LS1 2SD
Yorkshire / GB
[N/P]
Former [1991/05]Denmark, James
Bailey, Walsh & Co. 5 York Place
Leeds LS1 2SD Yorkshire / GB
Former [1990/38]Wayte, Dennis Travers
BOULT, WADE & TENNANT 27 Furnival Street
London, EC4A 1PQ / GB
Application number, filing date89302586.616.03.1989
[1990/38]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0387435
Date:19.09.1990
Language:EN
[1990/38]
Search report(s)(Supplementary) European search report - dispatched on:EP14.11.1989
ClassificationIPC:H02M1/00, H02M3/156
[1990/38]
CPC:
H02M1/4225 (EP,US); H02M3/156 (EP,US); Y02B70/10 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1990/38]
TitleGerman:Antriebsanordnung für ein Schaltnetzteil[1990/38]
English:Control arrangement for a switched mode power supply[1990/38]
French:Dispositif de commande d'une alimentation à découpage[1990/38]
File destroyed:12.06.1999
Examination procedure12.09.1990Examination requested  [1990/45]
01.12.1992Despatch of a communication from the examining division (Time limit: M04)
08.02.1993Reply to a communication from the examining division
17.03.1993Despatch of communication of intention to grant (Approval: )
30.08.1993Despatch of communication that the application is refused, reason: formalities examination [1994/04]
09.09.1993Application refused, date of legal effect [1994/04]
Fees paidRenewal fee
11.01.1991Renewal fee patent year 03
20.01.1992Renewal fee patent year 04
16.01.1993Renewal fee patent year 05
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Documents cited:Search[X]DE3310774  (ZUMTOBEL AG [AT]);
 [A]US4677366  (WILKINSON BRUCE L [US], et al)
 [A]  - PESC'86 RECORD, 17th ANNUAL IEEE POWER ELECTRONICS SPECIALISTS CONF. 1986, pages 531 - 540; C.P. HENZE et al: "A digitally controlled AC to DC power conditioner that draws sinusoïdal input current"
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.