| Date | Action |
| 01/27/2002 | License Status Set to Expired |
| 06/04/2001 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 02/08/1999 | Internal Correction Applied |
| 07/23/1998 | Internal Correction Applied |
| 02/25/1998 | License Modified |
| 06/27/1997 | Internal Correction Applied |
| 06/27/1997 | Internal Correction Applied |
| 06/13/1997 | Internal Correction Applied |
| 07/15/1996 | License Renewed |
| 07/10/1991 | License Modified |
| 07/07/1991 | License Modified |
| 04/27/1989 | License Modified |
| 04/18/1989 | License Modified |
| 02/14/1986 | License Modified |
| 09/20/1985 | License Modified |
| 12/01/1980 | License Modified |