| Date | Action |
| 10/18/2005 | License Canceled |
| 11/20/2003 | Administrative Update Applied |
| 11/13/2003 | License Assigned (Full Assignment) |
| 08/06/2002 | License Modified |
| 03/29/2001 | Administrative Update Applied |
| 02/08/2001 | License Assigned (Full Assignment) |
| 09/18/2000 | License Transferred |
| 04/06/2000 | Administrative Update Applied |
| 04/06/2000 | Administrative Update Applied |
| 04/05/2000 | Administrative Update Applied |
| 01/21/2000 | License Renewed |
| 12/11/1999 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 04/20/1999 | Internal Correction Applied |
| 07/07/1998 | License Modified |
| 03/14/1998 | License Modified |
| 03/10/1995 | License Modified |
| 11/29/1989 | License Modified |
| 06/13/1988 | License Modified |
| 03/29/1988 | License Modified |
| 02/10/1988 | License Modified |
| 03/20/1987 | License Modified |
| 05/17/1983 | License Modified |
| 05/06/1983 | License Modified |
| 04/26/1983 | License Modified |
| 12/28/1982 | License Modified |
| 05/27/1981 | License Modified |
| 09/19/1978 | License Modified |
| 07/15/1977 | License Modified |