| Date | Action |
| 12/08/2004 | License Canceled |
| 06/17/2003 | Administrative Update Applied |
| 05/14/2003 | Administrative Update Applied |
| 03/13/2001 | License Renewed |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 08/14/1999 | License Converted |
| 07/08/1999 | Internal Correction Applied |
| 09/09/1998 | Internal Correction Applied |
| 12/23/1997 | Internal Correction Applied |
| 08/07/1997 | Internal Correction Applied |
| 05/27/1997 | Internal Correction Applied |
| 05/21/1997 | Internal Correction Applied |
| 05/08/1997 | Internal Correction Applied |
| 02/26/1996 | License Assigned (Full Assignment) |
| 02/14/1992 | License Assigned (Full Assignment) |
| 06/14/1990 | License Modified |
| 01/15/1990 | Application Granted |
| 11/30/1988 | Application Granted |
| 10/29/1985 | License Modified |
| 07/23/1985 | License Modified |
| 04/30/1985 | License Modified |
| 03/15/1985 | Application Granted |