| Date | Action |
| 09/26/2009 | License Status Set to Expired |
| 04/27/2009 | Renewal Reminder Letter Sent |
| 08/14/1999 | License Converted |
| 07/27/1999 | License Renewed |
| 07/21/1998 | Internal Correction Applied |
| 04/23/1998 | Internal Correction Applied |
| 06/17/1997 | Internal Correction Applied |
| 06/16/1997 | Internal Correction Applied |
| 07/22/1994 | License Modified |
| 02/20/1990 | License Modified |
| 02/15/1990 | License Modified |
| 01/30/1990 | License Modified |
| 01/22/1990 | License Modified |
| 10/10/1989 | License Modified |
| 05/18/1989 | License Modified |
| 05/12/1989 | License Issued |