| Date | Action |
| 05/11/2004 | License Canceled |
| 02/13/2003 | Administrative Update Applied |
| 01/14/2003 | Administrative Update Applied |
| 07/21/2002 | License Assigned (Full Assignment) |
| 07/01/2001 | License Transferred |
| 03/13/2001 | License Renewed |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 04/12/2000 | License Assigned (Full Assignment) |
| 08/14/1999 | License Converted |
| 06/25/1999 | Internal Correction Applied |
| 07/31/1996 | License Assigned (Full Assignment) |
| 11/20/1995 | License Modified |
| 08/31/1993 | License Modified |
| 04/17/1991 | License Renewed |
| 01/13/1988 | License Modified |
| 07/17/1987 | Application Granted |