| Date | Action |
| 05/12/2004 | License Canceled |
| 11/29/2001 | Administrative Update Applied |
| 07/11/2000 | Administrative Update Applied |
| 02/15/2000 | License Renewed |
| 11/06/1999 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 05/20/1998 | Internal Correction Applied |
| 01/16/1990 | License Renewed |
| 01/11/1990 | License Modified |
| 11/22/1989 | License Modified |
| 02/16/1989 | License Modified |
| 09/14/1988 | License Modified |
| 04/01/1988 | License Modified |
| 01/22/1988 | License Modified |
| 01/08/1987 | License Modified |
| 01/17/1986 | License Modified |
| 09/26/1985 | Application Granted |