| Date | Action |
| 07/02/2009 | License Canceled |
| 07/30/2002 | License Renewed |
| 05/20/2002 | Renewal Reminder Letter Sent |
| 07/04/2001 | Administrative Update Applied |
| 01/11/2001 | Administrative Update Applied |
| 12/31/2000 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 08/05/1999 | Internal Correction Applied |
| 07/21/1999 | Internal Correction Applied |
| 07/21/1999 | Internal Correction Applied |
| 07/21/1999 | Internal Correction Applied |
| 05/30/1997 | License Renewed |
| 08/13/1992 | License Modified |
| 07/08/1992 | License Modified |
| 07/06/1992 | License Modified |
| 09/14/1987 | License Modified |
| 12/02/1985 | License Modified |
| 09/22/1982 | License Modified |
| 11/09/1979 | License Modified |