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Extract from the Register of European Patents

EP About this file: EP0050417

EP0050417 - Circuit arrangement including an opto-isolator device for checking the state of an electric switch [Right-click to bookmark this link]
Former [1982/17]Opto-isolator device
[1990/10]
StatusThe application has been withdrawn
Status updated on  20.06.1990
Database last updated on 11.09.2024
Most recent event   Tooltip07.07.2007Change - inventorpublished on 08.08.2007  [2007/32]
Applicant(s)For all designated states
HONEYWELL INC.
Honeywell Plaza
Minneapolis, MN 55408 / US
[N/P]
Former [1982/17]For all designated states
HONEYWELL INC.
Honeywell Plaza
Minneapolis Minnesota 55408 / US
Inventor(s)01 / Black, Jr., Robert A.
7007 Girard Avenue North
Brooklyn Center Minnesota 55430 / US
[1982/17]
Representative(s)Votier, Sidney David, et al
CARPMAELS & RANSFORD 43, Bloomsbury Square
London WC1A 2RA / GB
[1989/38]
Former [1984/45]Harman, Michael Godfrey
Honeywell Control Systems Ltd. Charles Square
Bracknell Berkshire RG12 1EB / GB
Former [1982/17]Riddle, John
Honeywell Control Systems Ltd. Patent Department Charles Square
Bracknell, Berks. / GB
Application number, filing date81304267.817.09.1981
[1982/17]
Priority number, dateUS1980019788817.10.1980         Original published format: US 197888
[1982/17]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0050417
Date:11.07.1990
Language:EN
[1990/28]
Search report(s)(Supplementary) European search report - dispatched on:EP03.02.1982
ClassificationIPC:H02H3/04, H03K17/18, G08B21/00
[1982/17]
CPC:
H01H9/167 (EP,US); H03K17/18 (EP,US); H03K17/7955 (EP,US);
H04B10/802 (EP,US)
Designated contracting statesCH,   DE,   FR,   GB,   IT,   LI,   NL [1982/17]
TitleGerman:Eine Optokoppler-Einrichtung umfassende Schaltungsanordnung zur Zustandsüberwachung eines elektrischen Schalters[1990/10]
English:Circuit arrangement including an opto-isolator device for checking the state of an electric switch[1990/10]
French:Agencement de circuit comprenant un dispositif isolateur optique pour vérifier l'état d'un interrupteur électrique[1990/10]
Former [1982/17]Opto-Isolator-Einrichtung
Former [1982/17]Opto-isolator device
Former [1982/17]Dispositif isolateur optique
File destroyed:10.06.1996
Examination procedure23.09.1982Examination requested  [1982/49]
28.05.1984Despatch of a communication from the examining division (Time limit: M04)
25.08.1984Reply to a communication from the examining division
05.12.1984Despatch of communication of intention to grant (Approval: )
15.07.1985Despatch of communication that the application is refused, reason: formalities examination [1986/01]
25.07.1985Application refused, date of legal effect [1986/01]
18.07.1986Communication of intention to grant the patent
08.09.1986Fee for grant paid
08.09.1986Fee for publishing/printing paid
15.01.1990Application withdrawn by applicant  [1990/32]
Fees paidRenewal fee
14.06.1983Renewal fee patent year 03
26.06.1984Renewal fee patent year 04
25.06.1985Renewal fee patent year 05
18.06.1986Renewal fee patent year 06
19.06.1987Renewal fee patent year 07
21.06.1988Renewal fee patent year 08
16.06.1989Renewal fee patent year 09
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Stay/Interruption15.03.1985Interruption of proceedings. Reason: legal incapacity of representative
18.07.1986Resumption of proceedings
Documents cited:SearchUS3421156  [ ] (ROWELL WILLIAM G);
 US3387135  [ ] (ENGH ROBERT O);
 DE2614748  [ ] (BAUM ELEKTROPHYSIK GMBH)
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.