USPTO Deadlines
Application History
8 events| Date | Code | Type | Description | Documents |
|---|---|---|---|---|
| Oct 18, 2013 | ABN2 | O | ABANDONMENT - FAILURE TO RESPOND OR LATE RESPONSE | Loading... |
| Oct 18, 2013 | MAB2 | O | ABANDONMENT NOTICE MAILED - FAILURE TO RESPOND | Loading... |
| Mar 22, 2013 | CNRT | R | NON-FINAL ACTION WRITTEN | Loading... |
| Mar 22, 2013 | GNRT | F | NON-FINAL ACTION E-MAILED | Loading... |
| Mar 22, 2013 | GNRN | O | NOTIFICATION OF NON-FINAL ACTION E-MAILED | Loading... |
| Mar 21, 2013 | DOCK | D | ASSIGNED TO EXAMINER | Loading... |
| Jan 30, 2013 | NWOS | I | NEW APPLICATION OFFICE SUPPLIED DATA ENTERED | Loading... |
| Jan 29, 2013 | NWAP | I | NEW APPLICATION ENTERED | Loading... |
Detailed Classifications
Class 007
A centralizer run on the outside of the casing in order to run casing, liner or sand screens into the wellbore; designed with bi-directional rollers around the exterior which maintain contact with the casing and the borehole wall to reduce torque and drag
First Use Anywhere:
Jan 1, 1999
First Use in Commerce:
Jan 1, 1999
Classification
International Classes
007