QUATERNÄRE AMMONIUMHYDROXIDE VON POLYAMINEN
European patent · EP3844142 · Deleted
Register entry
- Publication number
- EP3844142
- Application number
- EP19856217
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- Deleted
- Specification
- Granted
- Filed
- Jul 29, 2019
- Published
- Jul 7, 2021
- Granted
- Sep 11, 2024
- Deleted
- Feb 24, 2026
- Reason
- Annual fee unpaid
- IPC classes
- C07C 215/40 (2006.01)C07C 217/28 (2006.01)C07D 295/088 (2006.01)C11D 11/00 (2006.01)C11D 7/32 (2006.01)C11D 7/50 (2006.01)C07C 213/04 (2006.01)
- Priority
- US 201862724849 P 30.08.2018
- PCT application
- PCT/US2019/043862 29.07.2019
- PCT publication
- WO2020/046515 05.03.2020
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Feb 24, 2026
Deleted, fee unpaid
- Status of protective title
- Active → Cancelled
- Cancellation date
- 24.02.2026
- Cause for cancellation
- Non-payment of renewal fee
Published in Swissreg on 24.02.2026
- Jul 23, 2025
Change
Published in Swissreg on 23.07.2025
- Sep 11, 2024
Granted
- Specification status
- Non-published patent application → Granted patent
- Status of protective title
- Initiated → Active
Published in Swissreg on 11.09.2024
Parties
Inventor
LEWIS, David C.
The Woodlands, Texas 77381, US
ZHOU, Hui
The Woodlands, Texas 77381, US
CHAMPION, Donald H.
The Woodlands, Texas 77381, US
URIARTE, Juventino
The Woodlands, Texas 77381, US
ZHENG, Chai
The Woodlands, Texas 77381, US
ZHANG, Ke
The Woodlands, Texas 77381, 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.