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 24.05.2019CN 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.
- Dec 24, 2025
Change
Published in Swissreg on 24.12.2025
- 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
- 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.