| Date | Action |
| 01/15/2003 | License Canceled |
| 02/22/2002 | License Assigned (Full Assignment) |
| 09/26/2000 | License Renewed |
| 05/07/2000 | Renewal Reminder Letter Sent |
| 12/17/1999 | Administrative Update Applied |
| 12/17/1999 | Administrative Update Applied |
| 12/07/1999 | Administrative Update Applied |
| 08/13/1999 | License Converted |
| 02/08/1999 | License Modified |
| 04/06/1998 | Administrative Update Applied |
| 03/06/1997 | License Modified |
| 11/18/1993 | License Modified |
| 08/10/1993 | License Modified |
| 05/28/1992 | License Modified |
| 08/22/1991 | License Modified |
| 11/03/1988 | License Modified |
| 07/22/1988 | License Modified |
| 05/28/1987 | License Modified |
| 12/06/1984 | Application Granted |