| Date | Action |
| 01/04/2003 | License Canceled |
| 11/30/2001 | Administrative Update Applied |
| 07/12/2000 | Administrative Update Applied |
| 02/15/2000 | License Renewed |
| 11/06/1999 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 01/06/1999 | License Modified |
| 05/29/1998 | Internal Correction Applied |
| 10/20/1993 | License Modified |
| 01/16/1990 | License Renewed |
| 04/24/1989 | License Modified |
| 11/10/1988 | License Modified |
| 06/30/1988 | License Modified |
| 04/29/1988 | License Modified |
| 08/28/1987 | License Modified |
| 02/03/1987 | License Modified |
| 11/25/1986 | Application Granted |