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Extract from the Register of European Patents

EP About this file: EP4391762

EP4391762 - STAIRCASE STRUCTURE IN THREE-DIMENSIONAL MEMORY DEVICE AND METHOD FOR FORMING THE SAME [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  24.05.2024
Database last updated on 16.09.2024
Most recent event   Tooltip24.05.2024Publication in section I.1 EP Bulletinpublished on 26.06.2024  [2024/26]
24.05.2024Request for examination filedpublished on 26.06.2024  [2024/26]
Applicant(s)For all designated states
Yangtze Memory Technologies Co., Ltd.
No.88 Weilai 3rd Road
East Lake High-tech Development Zone
Wuhan, Hubei 430000 / CN
[2024/26]
Inventor(s)01 / ZHANG, Zhong
Wuhan, Hubei 430000 / CN
02 / SUN, Zhongwang
Wuhan, Hubei 430000 / CN
03 / ZHOU, Wenxi
Wuhan, Hubei 430000 / CN
04 / XIA, Zhiliang
Wuhan, Hubei 430000 / CN
 [2024/26]
Representative(s)Lippert Stachow Patentanwälte Rechtsanwälte
Partnerschaft mbB
Frankenforster Strasse 135-137
51427 Bergisch Gladbach / DE
[2024/26]
Application number, filing date24174671.823.03.2020
[2024/26]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP4391762
Date:26.06.2024
Language:EN
[2024/26]
ClassificationIPC:H10B43/50
[2024/26]
CPC:
H10B41/10 (EP,KR,US); H10B41/27 (EP,CN,KR); H10B41/35 (CN,US);
H10B41/20 (US); H10B41/50 (EP,KR); H10B43/10 (EP,KR,US);
H10B43/20 (US); H10B43/27 (EP,CN,KR); H10B43/35 (CN,US);
H10B43/50 (EP,KR); H10B80/00 (KR) (-)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/26]
TitleGerman:TREPPENSTRUKTUR IN EINER DREIDIMENSIONALEN SPEICHERVORRICHTUNG UND VERFAHREN ZUR FORMUNG DAVON[2024/26]
English:STAIRCASE STRUCTURE IN THREE-DIMENSIONAL MEMORY DEVICE AND METHOD FOR FORMING THE SAME[2024/26]
French:STRUCTURE D'ESCALIER DANS UN DISPOSITIF DE MÉMOIRE TRIDIMENSIONNELLE ET SON PROCÉDÉ DE FORMATION[2024/26]
Examination procedure10.05.2024Examination requested  [2024/26]
Parent application(s)   TooltipEP20926360.7  / EP3931870
Fees paidRenewal fee
10.05.2024Renewal fee patent year 03
10.05.2024Renewal fee patent year 04
10.05.2024Renewal fee patent year 05
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