| Date | Action |
| 05/17/2003 | License Canceled |
| 02/26/2002 | License Assigned (Full Assignment) |
| 04/03/2001 | Administrative Update Applied |
| 02/06/2001 | License Renewed |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 10/02/2000 | License Transferred |
| 10/21/1999 | Administrative Update Applied |
| 08/14/1999 | License Converted |
| 01/20/1998 | License Transferred |
| 10/16/1996 | License Modified |
| 06/04/1996 | License Modified |
| 05/08/1995 | License Modified |
| 04/24/1995 | License Modified |
| 01/30/1995 | License Modified |
| 03/21/1994 | License Modified |
| 12/12/1991 | License Modified |