| Date | Action |
| 02/08/2002 | License Canceled |
| 03/13/2001 | License Renewed |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 03/26/1999 | Internal Correction Applied |
| 02/26/1996 | License Assigned (Full Assignment) |
| 03/08/1994 | License Modified |
| 02/14/1992 | License Assigned (Full Assignment) |
| 11/07/1991 | License Modified |
| 10/22/1990 | License Modified |
| 01/18/1989 | License Modified |
| 12/14/1988 | License Modified |
| 07/17/1987 | License Modified |
| 07/28/1986 | License Modified |
| 07/23/1985 | License Modified |
| 03/28/1985 | Application Granted |