| Date | Action |
| 10/19/2002 | License Canceled |
| 08/30/2002 | License Assigned (Full Assignment) |
| 01/03/2001 | License Renewed |
| 11/14/2000 | Administrative Update Applied |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 06/30/2000 | License Transferred |
| 08/13/1999 | License Converted |
| 10/14/1998 | Internal Correction Applied |
| 12/08/1997 | Administrative Update Applied |
| 11/25/1992 | License Transferred |
| 03/25/1991 | License Renewed |
| 02/15/1991 | License Transferred |
| 01/31/1990 | License Modified |
| 01/16/1990 | License Renewed |
| 02/23/1988 | License Modified |
| 09/29/1987 | Application Granted |