| Date | Action |
| 05/06/2001 | License Status Set to Expired |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 08/24/2000 | License Transferred |
| 06/27/2000 | License Assigned (Full Assignment) |
| 12/28/1999 | License Assigned (Partial Assignment) |
| 10/20/1999 | Internal Correction Applied |
| 08/14/1999 | License Converted |
| 09/20/1996 | License Assigned (Full Assignment) |
| 04/23/1996 | License Assigned (Full Assignment) |
| 08/16/1995 | License Assigned (Full Assignment) |
| 06/28/1994 | License Transferred |
| 10/26/1993 | License Modified |
| 02/23/1993 | License Modified |
| 01/22/1992 | License Modified |
| 04/17/1991 | License Renewed |
| 01/22/1991 | License Modified |
| 04/28/1988 | Application Granted |