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Patent details

815341 Title: SYSTEME DE FORAGE A DEUX COLONNES

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Basic information

Application number:
969041763
WO application number:
GB9600435
Type:
European patent granted for BE
Status:
Publication number:
815341
WO publication number:
WO 96/28634
1rst applicant's nationality:
Translation language:
EPO publication language:
English
SPC number:

Dates

Filing date:
27/02/1996
Grant date:
26/04/2000
EP publication date:
WO publication date:
Claims translation received date:
Translation received date (EP publication B1):
Translation received date (EP publication B2):
Translation received date (EP publication B3):
Registration date:
EP B1 publication date:
26/04/2000
EP B2 publication date:
EP B3 publication date:
Lapsed date:
Expiration date (if granted and all annual fees paid):

Applicant

Name:
EXPRO NORTH SEA LIMITED
Legal Form:
From:
26/04/2000
Address:
Kirkhill Place Kirkhill Industrial Estate Dyce Aberdeen AB2 OES(GB), GB
To:

Priority

Priority patent number:
9505129
Priority date:
14/03/1995
Priority country:
United Kingdom (GB)

Classification

IPC or IDT classification:
E21B 17/01 ; E21B 19/22;

Additional information section

Status:
ZONDER GEVOLG / SANS EFFET
Case kind / Max duration / Publication code:
Basic patent details (Patent law 1854):
Representative details:
Inventor(s) details:
MORGAN, Michael, Graham;EDWARDS, Jeffrey, Charles;
History of owners:
Filing date Document type Publication Type Document Description Number of pages