Application History
2 events| Date | Code | Type | Description | Documents |
|---|---|---|---|---|
| Nov 4, 1992 | EXRG | O | EXPIRED SEC. 9 | Loading... |
| Feb 24, 1977 | 8.OK | O | REGISTERED - SEC. 8 (6-YR) ACCEPTED | Loading... |
Additional Information
Design Mark
THE MARK IS A FANCIFUL TUBE INSIGNIA IN THE SHAPE OF A CLOSED FIST WITH ONE OF THE FOUR FINGERS ASSUMING AN EXTENDED POSITION.