ATE83041T1
Method and apparatus for controlling the direction of a down-hole percussion drilling tool
Abstract
This record has no abstract on file.
Term
Term ended
Projected expiry passed 15 May 2007, 19.4 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
13 members in 6 offices
Priority claims1
| Document | Office | Kind | Date |
|---|---|---|---|
| 86395786 | United States of America | A |
Members13
| Document | Office | Kind | |
|---|---|---|---|
| US4694913A | United States of America | A | |
| AU7298587A | Australia | A | |
| EP0247767A2 | European Patent Office (EPO) | A2 | |
| EP0247767A3 | European Patent Office (EPO) | A3 | |
| CA1244000A | Canada | A | |
| US4858704A | United States of America | A | |
| AU605061B2 | Australia | B2 | |
| EP0247767B1 | European Patent Office (EPO) | B1 | |
| AT83041T | Austria | T | |
| ATE83041T1This record | Austria | T1 | |
| DE3782853D1 | Germany | D1 | |
| DE3782853T2 | Germany | T2 | |
| US4858704B1 | United States of America | B1 |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Ceased as to paragraph 5 lit. 3 law introducing patent treatiesCeasedRER | RER |
Numbers
- Application
- 87304342
Titles2
- German
- VERFAHREN UND VORRICHTUNG ZUM STEUERN DER RICHTUNG EINES SCHLAGBOHRWERKZEUGS IM BOHRLOCH.
- English
- METHOD AND DEVICE FOR CONTROLLING THE DIRECTION OF AN IMPACT DRILLING TOOL IN A BOREHOLE.
Classification
- CPC, 4
- E21B4/145
- E21B7/06
- E21B7/068
- E21B7/26
- IPC, 3
- E21B4 14
- E21B7 06
- E21B7 26