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European patent · EP3921521 · Deleted
Register entry
- Publication number
- EP3921521
- Application number
- EP20703205
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- Deleted
- Specification
- Granted
- Filed
- Jan 31, 2020
- Published
- Dec 15, 2021
- Granted
- Sep 10, 2025
- Deleted
- Aug 25, 2026
- Reason
- Annual fee unpaid
- IPC classes
- F01N 3/20 (2006.01)
- Priority
- GB 201901585 05.02.2019
- PCT application
- PCT/EP2020/052493 31.01.2020
- PCT publication
- WO2020/161022 13.08.2020
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Aug 25, 2026
Deleted, fee unpaid
- Status of protective title
- Active → Cancelled
- Cancellation date
- 25.08.2026
- Cause for cancellation
- Non-payment of renewal fee
Published in Swissreg on 25.08.2026
- Jul 22, 2026
Change
Published in Swissreg on 22.07.2026
- Sep 10, 2025
Granted
- Specification status
- Non-published patent application → Granted patent
- Status of protective title
- Initiated → Active
Published in Swissreg on 10.09.2025
Parties
Inventor
SYKES, Martin, A.
Rainham Kent ME8 0HY, GB
KNOWLES, Peter
Herne Bay Kent CT6 6RF, GB
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.