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European patent · EP4182543 · Deleted
Register entry
- Publication number
- EP4182543
- Application number
- EP21842775
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- Deleted
- Specification
- Granted
- Filed
- Jun 21, 2021
- Published
- May 24, 2023
- Granted
- Nov 20, 2024
- Deleted
- Jan 27, 2026
- Reason
- Annual fee unpaid
- IPC classes
- E21B 29/10 (2006.01)E21B 33/134 (2006.01)E21B 33/124 (2006.01)E21B 33/14 (2006.01)E21B 43/10 (2006.01)
- Priority
- US 202063052277 P 15.07.2020
- PCT application
- PCT/US2021/038253 21.06.2021
- PCT publication
- WO2022/015471 20.01.2022
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Jan 27, 2026
Deleted, fee unpaid
- Status of protective title
- Active → Cancelled
- Cancellation date
- 27.01.2026
- Cause for cancellation
- Non-payment of renewal fee
Published in Swissreg on 27.01.2026
- 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
RUTHERFORD, James S.
Houston, Texas 77079, US
COLPITT, Charles
Houston, Texas 77079, US
WHITFIELD, Andrew H.
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.