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Extract from the Register of European Patents

EP About this file: EP0346424

EP0346424 - CONVERTER FOR CONVERTING A MULTIPLE PHASE VARIABLE FREQUENCY AC VOLTAGE INTO DC [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  27.11.1990
Database last updated on 11.09.2024
Most recent event   Tooltip27.11.1990Change - withdrawalpublished on 16.01.1991 [1991/03]
Applicant(s)For all designated states
SUNDSTRAND CORPORATION
4949 Harrison Avenue P.O. Box 7003 Rockford
Illinois 61125- 7003 / US
[N/P]
Former [1989/51]For all designated states
SUNDSTRAND CORPORATION
4949 Harrison Avenue P.O. Box 7003
Rockford Illinois 61125- 7003 / US
Inventor(s)01 / NG, Chai-Nam
4118 Florida Drive Apt. 236
Rockford, IL 61108 / US
02 / DHYANCHAND, John, J.
2721 Pelham Road
Rockford, IL 61107 / US
[1989/51]
Representative(s)Serjeants LLP
Dock
75 Exploration Drive
Leicester, LE4 5NU / GB
[N/P]
Former [1989/51]SERJEANTS
25, The Crescent King Street
Leicester, LE1 6RX / GB
Application number, filing date89900534.223.11.1988
[1989/51]
WO1988US04203
Priority number, dateUS1987012844503.12.1987         Original published format: US 128445
[1989/51]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO8905541
Date:15.06.1989
Language:EN
[1989/13]
Type: A1 Application with search report 
No.:EP0346424
Date:20.12.1989
Language:EN
The application published by WIPO in one of the EPO official languages on 15.06.1989 takes the place of the publication of the European patent application.
[1989/51]
Search report(s)International search report - published on:US15.06.1989
(Supplementary) European search report - dispatched on:EP22.03.1990
ClassificationIPC:H02M1/084
[1989/51]
CPC:
H02M7/1623 (EP,US)
Designated contracting statesDE,   FR,   GB [1989/51]
TitleGerman:UMWANDLER ZUM UMWANDLEN EINER MEHRPHASIGEN WECHSELSTROMSPANNUNG MIT VARIABLER FREQUENZ IN GLEICHSPANNUNG[1989/51]
English:CONVERTER FOR CONVERTING A MULTIPLE PHASE VARIABLE FREQUENCY AC VOLTAGE INTO DC[1989/51]
French:CONVERTISSEUR PERMETTANT LA CONVERSION D'UNE TENSION A COURANT ALTERNATIF A FREQUENCE VARIABLE A PHASE MULTIPLE EN UNE TENSION A COURANT CONTINU[1989/51]
File destroyed:08.07.1996
Entry into regional phase26.08.1989National basic fee paid 
26.08.1989Search fee paid 
26.08.1989Designation fee(s) paid 
26.08.1989Examination fee paid 
Examination procedure26.08.1989Examination requested  [1989/51]
16.10.1990Application withdrawn by applicant  [1991/03]
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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]US3849719  (GEIERSBACH A, et al);
 [A]US4042873  (COX JAY ASHTON)
International search[A]US3593105  (GROHAUGH PAUL D);
 [A]US3683262  (NEUFFER INGEMAR, et al);
 [A]US4050007  (GROSS HANS, et al);
 [X]EP0017642  (ELIN UNION AG [AT]);
 [X]JPS57117020  (HITACHI LTD);
 [A]US4348718  (VOLLRATH DONALD E);
 [X]US4385242  (WAGENER PAUL W);
 [A]US4499534  (SCHNETZKA HAROLD R [US], et al);
 [A]JPS6066672  (KOSHUHA NETSUREN KK)
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.