| Date | Action |
| 04/08/2006 | License Canceled |
| 06/04/2003 | License Modified |
| 04/21/2000 | Administrative Update Applied |
| 03/02/2000 | Administrative Update Applied |
| 02/17/2000 | License Renewed |
| 12/23/1999 | License Assigned (Full Assignment) |
| 12/11/1999 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 04/29/1999 | License Assigned (Full Assignment) |
| 03/07/1995 | License Renewed |
| 12/15/1989 | License Modified |
| 02/27/1987 | License Modified |
| 02/18/1987 | License Modified |
| 04/04/1984 | License Modified |
| 04/15/1982 | License Modified |
| 03/27/1981 | License Modified |
| 06/24/1977 | License Renewed |