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Legal status
Patent not validated
| (51) | INT.CL. | E21B 36/04 | |
| H01R 4/08 |
| (11) | Number of the document | 1871983 |
| (13) | Kind of document | T |
| (96) | European patent application number | 06751032.1 |
| Date of filing the European patent application | 2006-04-21 | |
| (97) | Date of publication of the European application | 2008-01-02 |
| (45) | Date of publication and mention of the grant of the patent | 2009-07-22 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/US2006/015167 |
| Date | 2006-04-21 |
| (87) | Number | WO 2006/116131 |
| Date | 2006-11-02 |
| (30) | Number | Date | Country code |
| 674081 P | 2005-04-22 | US |
| (72) |
BASS, Ronald Marshall, US
CARL, Frederick Gordon, US
KELTNER, Thomas J., US
KIM, Dong Sub, US
MASON, Stanley, Leroy, US
STEGEMEIER, George Leo, US
VINEGAR, Harold J., US
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| (73) |
Shell Oil Company,
One Shell Plaza, P.O. Box 2463, Houston, Texas 77252-2463,
US
Shell Internationale Research Maatschappij B.V., Carel van Bylandtlaan 30, 2596 HR Den Haag, NL |
| (54) | SUBSURFACE CONNECTION METHODS FOR SUBSURFACE HEATERS |
| SUBSURFACE CONNECTION METHODS FOR SUBSURFACE HEATERS |