| Date | Action |
| 02/11/2004 | License Canceled |
| 05/12/2003 | License Modified |
| 05/23/2002 | Administrative Update Applied |
| 08/22/2000 | License Renewed |
| 05/07/2000 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 08/03/1999 | Internal Correction Applied |
| 07/28/1999 | Internal Correction Applied |
| 07/28/1999 | License Modified |
| 11/26/1991 | License Assigned (Full Assignment) |
| 09/20/1990 | License Modified |
| 08/24/1990 | License Renewed |
| 02/16/1989 | License Modified |
| 07/22/1988 | License Modified |
| 03/25/1988 | License Modified |
| 05/01/1986 | Application Granted |