| Date | Action |
| 04/27/2003 | License Status Set to Expired |
| 10/28/2002 | Renewal Reminder Letter Sent |
| 10/29/1999 | Administrative Update Applied |
| 08/13/1999 | License Converted |
| 05/11/1998 | Internal Correction Applied |
| 01/23/1998 | License Renewed |
| 04/27/1995 | License Modified |
| 04/16/1992 | License Modified |
| 03/27/1992 | License Modified |
| 03/28/1991 | License Modified |
| 03/28/1991 | License Modified |
| 02/19/1991 | License Modified |
| 03/28/1986 | License Modified |
| 09/24/1985 | License Modified |
| 08/31/1983 | License Modified |
| 10/21/1981 | License Modified |
| 02/12/1980 | License Issued |