BLEI-EINDRUCK-WERKZUEG

European patent · EP4172457 · In force

Register entry

Publication number
EP4172457
Application number
EP21745561
Kind
European patent with effect for Switzerland and Liechtenstein
Status
In force
Specification
Granted
Filed
Jun 25, 2021
Published
May 3, 2023
Granted
Nov 19, 2025
Protection ends at the latest
Jun 24, 2041
Next annual fee due
Jun 30, 2026
IPC classes
E21B 33/03 (2006.01)
E21B 47/098 (2012.01)
E21B 17/10 (2006.01)
Priority
US 202016913892 26.06.2020
PCT application
PCT/US2021/039142 25.06.2021
PCT publication
WO2021/263137 30.12.2021
Filing language
English
Source
Swissreg

History

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

  1. Sep 30, 2026

    Change

    Published in Swissreg on 30.09.2026

  2. Nov 19, 2025

    Granted

    Specification status
    Non-published patent application → Granted patent
    Status of protective title
    Initiated → Active

    Published in Swissreg on 19.11.2025

Parties

Inventor

MCALLISTER, Shane

Houston, TX 77079, US

WENDEBORN, Alex

Houston, Texas 77079, US

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.