Méthode et dispositif pour la localisation d'une foreuse-sol cachée
European patent · EP0246886 · Deleted
Register entry
- Publication number
- EP0246886
- Application number
- EP87304499
- Kind
- European patent with effect for Switzerland and Liechtenstein
- Status
- Deleted
- Specification
- Granted
- Filed
- May 20, 1987
- Published
- Nov 25, 1987
- Granted
- Aug 30, 1989
- Deleted
- May 31, 1996
- Reason
- Annual fee unpaid
- IPC classes
- E21B 47/024 (2006.01)E21B 7/04 (2006.01)G01V 3/26 (2006.01)
- Priority
- US A 866242 22.05.1986
- Filing language
- English
- Source
- Swissreg
History
What the Federal Institute of Intellectual Property published about this title, newest first.
- Jan 15, 1997
Deleted, fee unpaid
Published in PIDTJ No 1 in 1997
- Oct 13, 1989
Granted
Published in PIDTJ No 19 in 1989
Parties
Inventor
Chau, Albert W.
Redmond Washington 98052, US
Mercer, John E.
Kent Washington 98031, 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.