| Date | Action |
| 10/19/2002 | License Canceled |
| 01/02/2002 | License Modified |
| 08/17/2001 | License Modified |
| 03/13/2001 | License Renewed |
| 02/02/2001 | Administrative Update Applied |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 08/15/2000 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 03/26/1999 | Internal Correction Applied |
| 02/24/1999 | License Transferred |
| 07/27/1998 | License Transferred |
| 09/19/1997 | License Assigned (Full Assignment) |
| 07/29/1994 | License Transferred |
| 07/07/1994 | License Modified |
| 12/29/1993 | License Modified |
| 01/30/1992 | License Modified |
| 11/30/1988 | License Modified |
| 06/26/1987 | License Modified |
| 04/09/1987 | License Modified |
| 03/17/1987 | License Modified |
| 12/19/1985 | License Modified |
| 09/25/1985 | Application Granted |
| 09/25/1985 | License Modified |