| Date | Action |
| 02/19/2011 | License Status Set to Expired |
| 09/20/2010 | Renewal Reminder Letter Sent |
| 11/30/2000 | License Renewed |
| 09/24/2000 | Renewal Reminder Letter Sent |
| 09/12/2000 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 10/21/1997 | License Modified |
| 11/08/1995 | License Renewed |
| 12/13/1990 | License Modified |
| 11/03/1990 | License Modified |
| 01/31/1986 | License Modified |
| 05/10/1985 | License Modified |
| 03/23/1984 | License Modified |
| 03/23/1984 | License Modified |
| 02/23/1984 | License Modified |
| 01/23/1984 | License Modified |
| 09/14/1981 | License Modified |
| 02/04/1981 | License Modified |
| 08/28/1980 | License Modified |