Extract from the Register of European Patents

EP About this file: EP0320711

EP0320711 - Antibounce circuit for digital circuits [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  08.10.1992
Database last updated on 28.03.2026
Most recent event   Tooltip08.10.1992No opposition filed within time limitpublished on 25.11.1992 [1992/48]
Applicant(s)For all designated states
STMicroelectronics Srl
Via C. Olivetti, 2
20041 Agrate Brianza (Milano) / IT
[N/P]
Former [1989/25]For all designated states
SGS-THOMSON MICROELECTRONICS S.r.l.
Via C. Olivetti, 2
I-20041 Agrate Brianza (Milano) / IT
Inventor(s)01 / Confalonieri, Pierangelo
6, Via Bergamo
Canonica D'Adda Bergamo / IT
02 / Pernici, Sergio
47, Viale V. Emanuele
I-24100 Bergamo / IT
03 / Nicollini, Germano
6, Via Pavesi
I-29100 Piacenza / IT
[1989/25]
Representative(s)Forattini, Amelia, et al
Internazionale Brevetti
Ingg. ZINI, MARANESI & C. S.r.l.
Piazza Castello 1
20121 Milano / IT
[N/P]
Former [1991/25]Forattini, Amelia, et al
c/o Internazionale Brevetti Ingg. ZINI, MARANESI & C. S.r.l. Piazza Castello 1
I-20121 Milano / IT
Former [1989/25]Garrone, Fernando
Internazionale Brevetti s.r.l. Via Brentano 2
I-20121 Milano / IT
Application number, filing date88120115.602.12.1988
[1989/25]
Priority number, dateIT1987002298714.12.1987         Original published format: IT 2298787
[1989/25]
Filing languageIT
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0320711
Date:21.06.1989
Language:EN
[1989/25]
Type: A3 Search report 
No.:EP0320711
Date:27.09.1989
Language:EN
[1989/39]
Type: B1 Patent specification 
No.:EP0320711
Date:04.12.1991
Language:EN
[1991/49]
Search report(s)(Supplementary) European search report - dispatched on:EP10.08.1989
ClassificationIPC:H03K5/01
[1989/25]
CPC:
H03K5/1252 (EP,US)
Designated contracting statesDE,   FR,   GB,   NL,   SE [1989/25]
TitleGerman:Entprellschaltung für digitale Schaltkreise[1989/25]
English:Antibounce circuit for digital circuits[1989/25]
French:Circuit antirebond pour circuits numériques[1989/25]
Examination procedure07.03.1990Examination requested  [1990/20]
31.08.1990Despatch of a communication from the examining division (Time limit: M04)
13.12.1990Reply to a communication from the examining division
07.03.1991Despatch of communication of intention to grant (Approval: Yes)
31.05.1991Communication of intention to grant the patent
24.07.1991Fee for grant paid
24.07.1991Fee for publishing/printing paid
Opposition(s)05.09.1992No opposition filed within time limit [1992/48]
Fees paidRenewal fee
12.12.1990Renewal fee patent year 03
14.11.1991Renewal fee patent year 04
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Documents cited:Search[X] JP56007520  
 [X]   PATENT ABSTRACTS OF JAPAN, Vol. 5, No. 55 (E-52)[727], 16th April 1981; & JP-A-56 007 520 (MITSUBISHI DENKI K.K.) 26-01-1981 [X]
 [A]   NEW ELECTRONICS, Vol. 17, No. 11, 29th May 1984, Page 22, London, GB; C.E. UNDERY: "Debounce circuit without masking delay" [A]
 [A]   FUNKSCHAU, vol. 58, no. 18, August 1986, page 65, Mnchen, DE; H. REDELBERGEN: "CMOS-Flipflop-Entprellschaltung" [A]
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