| Date | Action |
| 02/19/2004 | License Canceled |
| 11/30/2001 | Administrative Update Applied |
| 07/12/2000 | Administrative Update Applied |
| 02/15/2000 | License Renewed |
| 11/06/1999 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 05/29/1998 | Internal Correction Applied |
| 07/09/1997 | License Modified |
| 04/27/1992 | License Modified |
| 04/15/1992 | License Modified |
| 03/20/1991 | License Modified |
| 05/15/1990 | License Modified |
| 01/16/1990 | License Renewed |
| 12/24/1987 | License Modified |
| 09/10/1987 | License Modified |
| 03/30/1987 | License Modified |
| 02/03/1987 | License Modified |
| 12/22/1986 | License Modified |
| 11/25/1986 | License Modified |
| 09/15/1986 | License Modified |
| 09/12/1986 | License Modified |
| 07/21/1986 | License Modified |
| 04/20/1986 | License Modified |
| 04/20/1986 | License Modified |
| 03/31/1986 | License Modified |
| 02/25/1986 | License Modified |
| 01/15/1986 | License Modified |
| 11/20/1985 | License Modified |
| 11/20/1985 | License Modified |
| 11/29/1984 | Application Granted |