| Date | Action |
| 01/24/2003 | License Canceled |
| 03/13/2001 | Administrative Update Applied |
| 02/21/2001 | License Renewed |
| 11/14/2000 | License Assigned (Full Assignment) |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 08/14/1999 | License Converted |
| 12/23/1997 | Internal Correction Applied |
| 09/03/1997 | License Assigned (Full Assignment) |
| 01/17/1996 | License Transferred |
| 07/11/1994 | License Modified |
| 07/11/1994 | License Modified |
| 01/24/1994 | License Assigned (Full Assignment) |
| 04/02/1993 | License Modified |
| 04/02/1993 | License Modified |
| 01/11/1990 | Application Granted |