| Date | Action |
| 01/08/2005 | License Canceled |
| 08/15/2003 | License Modified |
| 05/24/2001 | License Modified |
| 03/13/2001 | License Renewed |
| 02/02/2001 | Administrative Update Applied |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 08/09/2000 | License Assigned (Full Assignment) |
| 04/28/2000 | License Transferred |
| 08/13/1999 | License Converted |
| 03/22/1999 | License Transferred |
| 09/09/1998 | Internal Correction Applied |
| 12/15/1997 | Internal Correction Applied |
| 10/28/1997 | Internal Correction Applied |
| 04/21/1997 | Internal Correction Applied |
| 03/21/1997 | Internal Correction Applied |
| 12/27/1994 | License Transferred |
| 04/11/1994 | License Assigned (Full Assignment) |
| 12/28/1993 | License Modified |
| 03/25/1992 | License Assigned (Full Assignment) |
| 11/29/1991 | License Assigned (Full Assignment) |
| 04/08/1991 | License Renewed |