| Date | Action |
| 03/01/2003 | License Canceled |
| 09/07/2002 | License Renewed |
| 08/02/2002 | Administrative Update Applied |
| 05/20/2002 | Renewal Reminder Letter Sent |
| 03/08/2002 | Administrative Update Applied |
| 04/30/2001 | License Assigned (Full Assignment) |
| 02/21/2001 | License Transferred |
| 05/04/2000 | License Transferred |
| 08/13/1999 | License Converted |
| 06/06/1997 | License Renewed |
| 08/14/1992 | License Modified |
| 08/05/1992 | License Modified |
| 05/09/1991 | License Modified |
| 03/30/1991 | License Modified |
| 09/30/1988 | License Modified |
| 06/13/1986 | License Modified |
| 01/04/1982 | License Issued |