| Date | Action |
| 01/31/2002 | 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 |
| 08/27/1999 | License Converted |
| 08/25/1999 | Internal Correction Applied |
| 08/25/1999 | License Modified |
| 08/13/1999 | License Converted |
| 11/24/1998 | License Modified |
| 05/06/1998 | Internal Correction Applied |
| 09/18/1997 | License Modified |
| 04/18/1997 | License Modified |
| 06/19/1996 | License Modified |
| 01/16/1990 | License Renewed |
| 03/23/1989 | License Modified |
| 02/15/1989 | License Modified |
| 02/26/1988 | License Modified |
| 11/05/1987 | License Modified |
| 10/22/1987 | License Modified |
| 02/19/1987 | License Modified |
| 08/14/1986 | License Modified |
| 01/31/1986 | License Modified |
| 08/01/1985 | Application Granted |