| Date | Action |
| 03/30/2006 | License Canceled |
| 01/23/2001 | License Renewed |
| 11/28/2000 | Administrative Update Applied |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 09/21/1999 | License Assigned (Full Assignment) |
| 08/14/1999 | License Converted |
| 10/07/1998 | License Transferred |
| 12/23/1997 | Internal Correction Applied |
| 04/19/1996 | License Modified |
| 04/15/1996 | License Modified |
| 11/23/1994 | License Modified |
| 11/04/1994 | License Modified |
| 03/23/1993 | License Modified |
| 07/06/1988 | Application Granted |
| 06/14/1988 | License Transferred |
| 04/06/1988 | License Transferred |