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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.

  1. 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

  2. Jul 22, 2026

    Change

    Published in Swissreg on 22.07.2026

  3. 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.