| Date | Action |
| 12/13/2000 | Internal Correction Applied |
| 12/13/2000 | Internal Correction Applied |
| 12/13/2000 | Internal Duplicate Requested |
| 06/16/2000 | License Canceled |
| 08/14/1999 | License Converted |
| 08/11/1999 | License Transferred |
| 07/07/1999 | Internal Correction Applied |
| 02/19/1998 | License Assigned (Full Assignment) |
| 08/16/1993 | License Transferred |
| 08/07/1991 | License Modified |
| 04/17/1991 | License Renewed |
| 03/05/1991 | License Modified |
| 10/11/1990 | License Assigned (Full Assignment) |
| 02/01/1990 | License Transferred |
| 06/13/1986 | Application Granted |