Petro-Data C.A.
Records under this name other than patents Petro-Data C.A. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 5 of 5 · Back to Petro-Data C.A.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,083,401 | Apparatus and methods for testing earth formations Term ended Term ended no later than Apr 11, 1998 · Low confidence | Term ended | Term ended no later than Apr 11, 1998 | Low confidence |
| US 4,090,573 | Wireline sealing apparatus and method for use with a drill string Term ended Term ended no later than May 23, 1998 · Low confidence | Term ended | Term ended no later than May 23, 1998 | Low confidence |
| US 4,094,359 | Apparatus and methods for testing earth formations Term ended Term ended no later than Jun 13, 1998 · Low confidence | Term ended | Term ended no later than Jun 13, 1998 | Low confidence |
| US 4,108,243 | Apparatus for testing earth formations Term ended Term ended no later than Aug 22, 1998 · Low confidence | Term ended | Term ended no later than Aug 22, 1998 | Low confidence |
| US 4,116,274 | Wireline latching apparatus and method of use Term ended Term ended no later than Sep 26, 1998 · Low confidence | Term ended | Term ended no later than Sep 26, 1998 | Low confidence |