| Date | Action |
| 11/05/2000 | License Status Set to Expired |
| 05/07/2000 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 07/26/1999 | Internal Correction Applied |
| 04/07/1999 | Internal Correction Applied |
| 08/21/1997 | License Modified |
| 11/26/1991 | License Assigned (Full Assignment) |
| 10/10/1991 | License Modified |
| 10/10/1991 | License Modified |
| 09/03/1991 | License Modified |
| 08/24/1990 | License Renewed |
| 04/27/1990 | License Modified |
| 03/04/1988 | License Modified |
| 03/04/1988 | License Modified |
| 06/18/1987 | License Modified |
| 01/08/1987 | License Modified |
| 06/12/1986 | License Modified |
| 04/24/1986 | Application Granted |