| Date | Action |
| 02/27/2002 | 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 |
| 11/20/1998 | License Modified |
| 05/04/1998 | Internal Correction Applied |
| 01/16/1990 | License Renewed |
| 12/15/1988 | License Modified |
| 09/22/1988 | License Modified |
| 09/17/1987 | License Modified |
| 08/13/1987 | License Modified |
| 06/04/1987 | License Modified |
| 08/07/1986 | License Modified |
| 02/07/1986 | License Modified |
| 10/04/1984 | Application Granted |