| Date | Action |
| 12/03/2003 | License Canceled |
| 02/07/2003 | License Assigned (Full Assignment) |
| 01/17/2002 | License Assigned (Full Assignment) |
| 01/11/2002 | License Assigned (Full Assignment) |
| 02/27/2001 | License Renewed |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 07/09/1997 | License Assigned (Full Assignment) |
| 06/10/1993 | License Modified |
| 10/14/1992 | License Assigned (Full Assignment) |
| 12/12/1991 | License Modified |
| 07/15/1991 | License Transferred |
| 04/25/1991 | License Renewed |
| 12/20/1990 | License Transferred |
| 11/05/1990 | License Transferred |
| 06/14/1990 | License Transferred |