| Date | Action |
| 08/24/2001 | License Canceled |
| 03/06/2001 | License Renewed |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 11/10/2000 | License Assigned (Full Assignment) |
| 10/02/2000 | License Transferred |
| 01/04/2000 | Administrative Update Applied |
| 11/10/1999 | Administrative Update Applied |
| 10/08/1999 | License Transferred |
| 10/01/1999 | License Assigned (Full Assignment) |
| 08/14/1999 | License Converted |
| 08/11/1999 | Internal Correction Applied |
| 11/04/1998 | Internal Correction Applied |
| 02/14/1992 | License Transferred |
| 08/05/1991 | License Transferred |
| 04/17/1991 | License Renewed |
| 07/30/1990 | Application Granted |