| Date | Action |
| 09/20/2017 | License Canceled |
| 09/04/2017 | Renewal Reminder Letter Sent |
| 12/04/2007 | License Renewed |
| 09/10/2007 | Renewal Reminder Letter Sent |
| 01/23/2002 | License Modified |
| 07/12/2001 | License Assigned (Full Assignment) |
| 11/15/2000 | Internal Correction Applied |
| 08/14/1999 | License Converted |
| 05/28/1999 | License Assigned (Full Assignment) |
| 01/08/1998 | Internal Correction Applied |
| 01/08/1998 | License Renewed |
| 01/25/1995 | Internal Correction Applied |
| 12/07/1994 | License Modified |
| 12/01/1992 | License Modified |
| 11/16/1992 | License Modified |
| 08/16/1991 | License Issued |