IP Verse

Three-Dimensional Memory Devices Having Through Stair Contacts And Methods For Forming The Same

Patent No. EP3850660 (titled "Three-Dimensional Memory Devices Having Through Stair Contacts And Methods For Forming The Same") was filed by Yangtze Memory on Jan 2, 2019. The application was issued on Oct 9, 2024.

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UPC Cases New

Latest UPC cases involving this patent.

Case Number	Filing Date	Plaintiff	Proceeding Type
UPC_CFI_0001041/2025	Oct 6, 2025	Yangtze Memory	Infringement

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Dossier Documents

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Aug 13, 2025
Communication regarding the expiry of opposition period
Oct 22, 2024
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Sep 12, 2024
Decision to grant a European patent
Sep 5, 2024
Change to the inventor details
Sep 5, 2024
Communication of the registration of a transfer or change of name and/or address
Aug 30, 2024
(Electronic) Receipt
Aug 30, 2024
Filing of the translations of the claims
Aug 30, 2024
French translation of claims
Aug 30, 2024
German translation of the claims
Aug 30, 2024
Letter accompanying subsequently filed items
May 3, 2024
Annex to the communication about intention to grant a European patent
May 3, 2024
Bibliographic data of the European patent application
May 3, 2024
Communication about intention to grant a European patent
May 3, 2024
Intention to grant (signatures)
May 3, 2024
Text intended for grant (clean copy)
May 3, 2024
Text intended for grant (version for approval)
Mar 12, 2024
Notification concerning the date of oral proceedings
Mar 11, 2024
(Electronic) Receipt
Mar 11, 2024
Letter accompanying subsequently filed items
Mar 11, 2024
Written submission in preparation to/during oral proceedings
Feb 29, 2024
Annex to the communication
Feb 29, 2024
Consultation by telephone/in person
Feb 29, 2024
Result of consultation by telephone/in person
Feb 26, 2024
Communication for party to proceedings/third party
Feb 8, 2024
(Electronic) Receipt
Feb 8, 2024
Amended claims with annotations
Feb 8, 2024
Amended claims with annotations
Feb 8, 2024
Amended claims with annotations
Feb 8, 2024
Amended claims with annotations
Feb 8, 2024
Claims
Feb 8, 2024
Claims
Feb 8, 2024
Claims
Feb 8, 2024
Claims
Feb 8, 2024
Letter accompanying subsequently filed items
Feb 8, 2024
Written submission in preparation to/during oral proceedings
Jul 14, 2023
Advice of delivery
Jul 13, 2023
Acknowledgement of a document
Jul 13, 2023
Annex to the communication
Jul 13, 2023
Summons to attend oral proceedings
May 9, 2023
(Electronic) Receipt
May 9, 2023
Amended claims with annotations
May 9, 2023
Claims
May 9, 2023
Letter accompanying subsequently filed items
May 9, 2023
Reply to communication from the Examining Division
Feb 3, 2023
Annex to the communication
Feb 3, 2023
Communication from the Examining Division
Jan 27, 2023
Examination started
Oct 18, 2022
(Electronic) Receipt
Oct 18, 2022
Amended claims filed after receipt of (European) search report
Oct 18, 2022
Amended claims with annotations
Oct 18, 2022
Amended description filed after receipt of (European) search report
Oct 18, 2022
Amended description with annotations
Oct 18, 2022
Amendments received before examination
Oct 18, 2022
Letter accompanying subsequently filed items
Apr 25, 2022
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Apr 4, 2022
Communication regarding the transmission of the European search report
Apr 4, 2022
European search opinion
Apr 4, 2022
Information on Search Strategy
Apr 4, 2022
Supplementary European search report
Mar 24, 2022
Search started
Oct 28, 2021
(Electronic) Receipt
Oct 28, 2021
Amended claims filed after receipt of (European) search report
Oct 28, 2021
Amended claims with annotations
Oct 28, 2021
Amendments received before examination
Oct 28, 2021
Letter accompanying subsequently filed items
Jul 19, 2021
Copy of the international preliminary report on patentability
Jun 23, 2021
Notification on forthcoming publication of bibliographic data
Apr 29, 2021
Communication regarding possible amendment of the application/payment of claims fee
Apr 29, 2021
Confirmation of effective date of early entry
Apr 16, 2021
Notification of the recording of a change
Apr 15, 2021
(Electronic) Receipt
Apr 15, 2021
Request for entry into the European phase
Jul 9, 2020
Copy of the international search report
Jul 9, 2020
Published international application - A1

EP3850660

YANGTZE MEMORY

Application Number: EP19907062A
Filing Date: Jan 2, 2019
Status: No Opposition Filed Within Time Limit; Aug 15, 2025
Publication Date: Oct 9, 2024
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