| Date | Action |
| 01/28/2004 | License Canceled |
| 01/24/2004 | Administrative Update Applied |
| 01/09/2003 | Administrative Update Applied |
| 07/23/2002 | Administrative Update Applied |
| 06/27/2001 | License Transferred |
| 06/08/2001 | License Transferred |
| 06/07/2001 | License Renewed |
| 04/30/2001 | Renewal Reminder Letter Sent |
| 04/19/2001 | Administrative Update Applied |
| 08/13/1999 | License Converted |
| 12/28/1998 | Internal Correction Applied |
| 06/11/1996 | License Renewed |
| 12/19/1991 | License Modified |
| 06/28/1991 | License Modified |
| 06/28/1991 | License Modified |
| 06/12/1991 | License Modified |
| 04/05/1990 | License Modified |
| 02/26/1990 | License Modified |
| 05/10/1985 | License Modified |
| 05/01/1985 | License Modified |
| 03/26/1981 | License Modified |