(19)
(11) EP 1 210 497 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
03.05.2006 Bulletin 2006/18

(45) Mention of the grant of the patent:
18.01.2006 Bulletin 2006/03

(21) Application number: 00957427.8

(22) Date of filing: 11.08.2000
(51) International Patent Classification (IPC): 
E21B 7/06(2006.01)
E21B 17/10(2006.01)
 E21B 17/04(2006.01)
(86) International application number:
PCT/US2000/022222
(87) International publication number:
WO 2001/012945 (22.02.2001 Gazette 2001/08)

(54)

BIT CONNECTOR

BOHRMEISSELVERBINDER

RACCORD DE TREPAN DE FORAGE

(84) Designated Contracting States:
DE DK FR GB IT NL

(30) Priority: 17.08.1999 US 376756

(43) Date of publication of application:
05.06.2002 Bulletin 2002/23

(73) Proprietor: HALLIBURTON ENERGY SERVICES, INC.
Houston, TX 77072 (US)

(72) Inventors:
  • EPPINK, Jay, M.
    Spring, TX 77373 (US)
  • ODELL, Albert, C., II
    Kingwood, TX 77339 (US)
  • RIOS-ALEMAN, David, E.
    Houston, TX 77079 (US)

(74) Representative: Wain, Christopher Paul et al
A.A. Thornton & Co. 235 High Holborn
London WC1V 7LE
London WC1V 7LE (GB)


(56) References cited: : 
US-A- 4 185 704
US-A- 5 402 856
US-A- 5 495 899
 US-A- 4 877 092
US-A- 5 423 389
US-A- 5 957 223
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).