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Extract from the Register of European Patents

EP About this file: EP0321702

EP0321702 - A circuit for holding a MOS transistor in a conduction state in a voltage supply outage situation [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  13.08.1994
Database last updated on 14.09.2024
Most recent event   Tooltip13.08.1994No opposition filed within time limitpublished on 05.10.1994 [1994/40]
Applicant(s)For all designated states
STMicroelectronics Srl
Via C. Olivetti, 2
20041 Agrate Brianza (Milano) / IT
[N/P]
Former [1989/26]For all designated states
SGS-THOMSON MICROELECTRONICS S.r.l.
Via C. Olivetti, 2
I-20041 Agrate Brianza (Milano) / IT
Inventor(s)01 / Rossi, Domenico
Via Roma, 161
I-27024 Cilavegna Pavia / IT
02 / Pietrobon, Giovanni
Via Bellegambe, 7
I-31100 Treviso / IT
03 / Storti, Sandro
Via F.lli Bandiera, 48
I-20099 Sesto San Giovanni Milan / IT
04 / Cini, Carlo
Via Aristotele, 15
I-20010 Cornaredo Milan / IT
[1989/26]
Representative(s)Perani, Aurelio, et al
c/o JACOBACCI & PERANI S.p.A. Via Visconti di Modrone, 7
I-20122 Milano / IT
[N/P]
Former [1989/26]Perani, Aurelio, et al
c/o JACOBACCI & PERANI S.p.A. Via Visconti di Modrone, 7
I-20122 Milano / IT
Application number, filing date88119207.418.11.1988
[1989/26]
Priority number, dateIT1987002316222.12.1987         Original published format: IT 2316287
[1989/26]
Filing languageIT
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0321702
Date:28.06.1989
Language:EN
[1989/26]
Type: A3 Search report 
No.:EP0321702
Date:22.08.1990
Language:EN
[1990/34]
Type: B1 Patent specification 
No.:EP0321702
Date:13.10.1993
Language:EN
[1993/41]
Search report(s)(Supplementary) European search report - dispatched on:EP03.07.1990
ClassificationIPC:H03K17/24, H03K17/06
[1989/26]
CPC:
H03K17/24 (EP,US); H03K17/063 (EP,US)
Designated contracting statesDE,   FR,   GB,   NL,   SE [1989/26]
TitleGerman:Schaltung, um einen MOS-Transistor bei Ausfall der Versorgungsspannung im leitenden Zustand zu halten[1989/26]
English:A circuit for holding a MOS transistor in a conduction state in a voltage supply outage situation[1989/26]
French:Circuit pour maintenir un transistor MOS à l'état conducteur en cas de défaillance de la tension d'alimentation[1989/26]
Examination procedure26.09.1990Examination requested  [1990/49]
25.02.1992Despatch of a communication from the examining division (Time limit: M06)
31.07.1992Reply to a communication from the examining division
03.12.1992Despatch of communication of intention to grant (Approval: Yes)
15.04.1993Communication of intention to grant the patent
19.05.1993Fee for grant paid
19.05.1993Fee for publishing/printing paid
Opposition(s)14.07.1994No opposition filed within time limit [1994/40]
Fees paidRenewal fee
13.11.1990Renewal fee patent year 03
11.10.1991Renewal fee patent year 04
19.10.1992Renewal fee patent year 05
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Documents cited:Search[A]  - IBM TECHNICAL DISCLOSURE BULLETIN vol. 10, no. 3, 3 August 1967, pages 339 - 340; C.A. WALTON: "Analog voltage storage with storage protection"
ExaminationEP0236967
 EP0246361
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.