Mathematisches Lehrmittel

Swiss patent · CH716934 · In force

Register entry

Publication number
CH716934
Application number
CH001602/2019
Kind
Swiss patent
Status
In force
Specification
Granted
Filed
Dec 12, 2019
Published
Jun 15, 2021
Granted
Oct 31, 2022
Protection ends at the latest
Dec 11, 2039
Next annual fee due
Dec 31, 2026
IPC classes
G09B 23/04 (2006.01)
CPC classes
G09B23/04 (2013-01-01)
Specifications
31.10.2022 B1
15.06.2021 A2
Filing language
German
Source
Swissreg

History

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

  1. Jan 1, 2026

    Change

    Published in Swissreg on 01.01.2026

  2. Jan 1, 2025

    Change

    Published in Swissreg on 01.01.2025

  3. Jan 1, 2024

    Change

    Published in Swissreg on 01.01.2024

  4. Dec 20, 2023

    Address changed

    Representative
    E. Blum & Co. AG, Patent- und Markenanwälte VSP, Vorderberg 11, 8044 Zürich → E. Blum & Co. AG, Hofwiesenstrasse 349, 8050 Zürich

    Published in Swissreg on 20.12.2023

  5. Jan 1, 2023

    Change

    Published in Swissreg on 01.01.2023

  6. Oct 31, 2022

    Granted

    Published in Swissreg on 31.10.2022

  7. Jun 15, 2021

    Change

    Published in Swissreg on 15.06.2021

Parties

Holder

Zehnder Bildungsprojekte Hanspeter Zehnder

Im Letten 2, 8536 Hüttwilen

Agent

E. Blum & Co. AG

Hofwiesenstrasse 349, 8050 Zürich

Inventor

Hanspeter Zehnder

8536 Hüttwilen

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.