SPIRALVERDICHTER

European patent · EP3978754 · Deleted

Register entry

Publication number
EP3978754
Application number
EP20812649
Kind
European patent with effect for Switzerland and Liechtenstein
Status
Deleted
Specification
Granted
Filed
May 25, 2020
Published
Apr 6, 2022
Granted
Feb 12, 2025
Deleted
Dec 23, 2025
Reason
Annual fee unpaid
IPC classes
F04C 18/02 (2006.01)
F04C 28/10 (2006.01)
F04C 29/00 (2006.01)
F04C 29/12 (2006.01)
F04C 28/24 (2006.01)
Priority
CN 201910440249 24.05.2019
CN 201920765067 U 24.05.2019
PCT application
PCT/CN2020/091986 25.05.2020
PCT publication
WO2020/238825 03.12.2020
Filing language
Chinese
Source
Swissreg

History

What the Federal Institute of Intellectual Property published about this title, newest first.

  1. Dec 24, 2025

    Change

    Published in Swissreg on 24.12.2025

  2. Dec 23, 2025

    Deleted, fee unpaid

    Status of protective title
    Active → Cancelled
    Cancellation date
    23.12.2025
    Cause for cancellation
    Non-payment of renewal fee

    Published in Swissreg on 23.12.2025

  3. Feb 12, 2025

    Granted

    Specification status
    Non-published patent application → Granted patent
    Status of protective title
    Initiated → Active

    Published in Swissreg on 12.02.2025

Parties

Inventor

LIU, Xuan

Suzhou, Jiangsu 215021, CN

ZHANG, Qiongyu

Suzhou, Jiangsu 215021, CN

The register names each party by name and address. A holder or agent is linked to an organization where exactly one entity of the commercial register bears its name; the street of a party not so recognised is not shown here.