| Date | Action |
| 05/23/2002 | License Canceled |
| 11/01/2000 | License Assigned (Full Assignment) |
| 07/20/2000 | License Renewed |
| 05/28/2000 | Renewal Reminder Letter Sent |
| 04/25/2000 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 05/08/1998 | License Assigned (Full Assignment) |
| 08/22/1995 | License Renewed |
| 04/10/1991 | License Modified |
| 03/20/1991 | License Modified |
| 02/20/1991 | License Modified |
| 09/16/1989 | License Modified |
| 09/16/1989 | License Modified |
| 11/09/1984 | License Modified |
| 10/31/1984 | License Modified |
| 08/01/1979 | License Modified |