blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP0411347

EP0411347 - Eeprom memory cell with improved protection against errors due to cell breakdown [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  02.03.1996
Database last updated on 07.10.2024
Most recent event   Tooltip28.12.2002Lapse of the patent in a contracting state
New state(s): NL
published on 12.02.2003  [2003/07]
Applicant(s)For all designated states
STMicroelectronics Srl
Via C. Olivetti, 2
20041 Agrate Brianza (Milano) / IT
[N/P]
Former [1991/06]For all designated states
SGS-THOMSON MICROELECTRONICS S.r.l.
Via C. Olivetti, 2
I-20041 Agrate Brianza (Milano) / IT
Inventor(s)01 / Riva, Carlo
Via Silvio Pellico 24/b
I-20052 Monza (Milano) / IT
[1991/06]
Representative(s)Forattini, Amelia, et al
Internazionale Brevetti
Ingg. ZINI, MARANESI & C. S.r.l.
Piazza Castello 1
20121 Milano / IT
[N/P]
Former [1991/06]Forattini, Amelia, et al
c/o Internazionale Brevetti Ingg. ZINI, MARANESI & C. S.r.l. Piazza Castello 1
I-20121 Milano / IT
Application number, filing date90113062.509.07.1990
[1991/06]
Priority number, dateIT1989002140201.08.1989         Original published format: IT 2140289
[1991/06]
Filing languageIT
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0411347
Date:06.02.1991
Language:EN
[1991/06]
Type: A3 Search report 
No.:EP0411347
Date:11.03.1992
Language:EN
[1992/11]
Type: B1 Patent specification 
No.:EP0411347
Date:26.04.1995
Language:EN
[1995/17]
Search report(s)(Supplementary) European search report - dispatched on:EP24.01.1992
ClassificationIPC:G11C16/04, G06F11/20
[1992/11]
CPC:
G11C29/74 (EP,US)
Former IPC [1991/06]G06F11/20
Designated contracting statesDE,   FR,   GB,   NL,   SE [1991/06]
TitleGerman:EEPROM-Speicherzelle mit verbessertem Schutz gegen Fehler aufgrund von Zelldurchbruch[1991/06]
English:Eeprom memory cell with improved protection against errors due to cell breakdown[1991/06]
French:Cellule de mémoire EEPROM à protection d'erreurs dues au claquage de cellule[1991/06]
Examination procedure27.08.1992Examination requested  [1992/46]
03.03.1994Despatch of a communication from the examining division (Time limit: M04)
20.06.1994Reply to a communication from the examining division
17.08.1994Despatch of communication of intention to grant (Approval: Yes)
28.10.1994Communication of intention to grant the patent
21.01.1995Fee for grant paid
21.01.1995Fee for publishing/printing paid
Opposition(s)27.01.1996No opposition filed within time limit [1996/16]
Fees paidRenewal fee
14.07.1992Renewal fee patent year 03
12.07.1993Renewal fee patent year 04
07.07.1994Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court
See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipNL26.04.1995
SE26.07.1995
[2003/07]
Former [1996/04]SE26.07.1995
Documents cited:Search[A]EP0268315  (SGS MICROELETTRONICA SPA [IT]);
 [Y]EP0293339  (SGS THOMSON MICROELECTRONICS [IT]);
 [Y]WO8906429  (ELITE SEMICONDUCTOR & SYSTEMS [US]);
 [AP]EP0326465  (SGS THOMSON MICROELECTRONICS [FR])
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.