LÜFTERLAMPE
European patent · EP3974658 · Deleted
Register entry
- Publication number
- EP3974658
- Application number
- EP20874884
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- Deleted
- Specification
- Granted
- Filed
- Sep 30, 2020
- Published
- Mar 30, 2022
- Granted
- Nov 20, 2024
- Deleted
- May 4, 2026
- Reason
- Annual fee unpaid
- IPC classes
- F04D 29/34 (2006.01)F04D 29/36 (2006.01)F04D 29/32 (2006.01)F21V 33/00 (2006.01)F04D 25/08 (2006.01)
- Priority
- CN 201921677855 U 09.10.2019
- PCT application
- PCT/CN2020/119240 30.09.2020
- PCT publication
- WO2021/068827 15.04.2021
- Filing language
- Chinese
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- May 4, 2026
Deleted, fee unpaid
- Status of protective title
- Active → Cancelled
- Cancellation date
- 04.05.2026
- Cause for cancellation
- Non-payment of renewal fee
Published in Swissreg on 04.05.2026
- Sep 24, 2025
Change
Published in Swissreg on 24.09.2025
- Nov 20, 2024
Granted
- Specification status
- Non-published patent application → Granted patent
- Status of protective title
- Initiated → Active
Published in Swissreg on 20.11.2024
Parties
Inventor
CHEN, Zhanhua
Suzhou City, Jiangsu 215211, CN
CHEN, Hongwei
Suzhou City, Jiangsu 215211, CN
NI, Guolong
Suzhou City, Jiangsu 215211, 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.