| Date | Action |
| 08/30/2002 | License Canceled |
| 04/03/2001 | Administrative Update Applied |
| 03/09/2001 | License Modified |
| 02/13/2001 | License Renewed |
| 11/15/2000 | License Assigned (Full Assignment) |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 10/02/2000 | License Transferred |
| 12/07/1999 | Administrative Update Applied |
| 08/14/1999 | License Converted |
| 02/02/1999 | Internal Correction Applied |
| 10/24/1997 | License Assigned (Full Assignment) |
| 10/24/1997 | License Assigned (Full Assignment) |
| 06/30/1997 | License Assigned (Full Assignment) |
| 07/10/1996 | License Modified |
| 02/20/1996 | License Modified |
| 08/03/1993 | License Modified |
| 11/25/1992 | License Transferred |
| 04/25/1991 | License Renewed |
| 11/02/1988 | License Modified |
| 07/20/1988 | License Modified |
| 09/29/1987 | Application Granted |