Dispositif de forage rotatif
European patent · EP0289457 · Deleted
Register entry
- Publication number
- EP0289457
- Application number
- EP88810240
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- Deleted
- Specification
- Granted
- Filed
- Apr 14, 1988
- Published
- Nov 2, 1988
- Granted
- Nov 22, 1990
- Deleted
- Nov 22, 1990
- Reason
- No effect for Switzerland and Liechtenstein
- IPC classes
- E21B 10/16 (2006.01)E21B 10/12 (2006.01)E21B 10/20 (2006.01)E21B 10/52 (2006.01)
- Priority
- GB A 8709437 21.04.1987
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Oct 25, 2024
Change
Published in Swissreg on 25.10.2024
- Dec 28, 1990
Granted
Published in PIDTJ No 24 in 1990
Parties
Inventor
Reid, Neil George
Aylesbury HP17 0HL, GB
Kaalstad, Oscar William
Winterpark Fla 32789, 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.