| Date | Action |
| 06/14/2003 | License Canceled |
| 05/14/2003 | Administrative Update Applied |
| 03/13/2001 | License Renewed |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 09/04/1998 | License Modified |
| 12/23/1997 | Internal Correction Applied |
| 12/22/1997 | Internal Correction Applied |
| 02/19/1997 | License Modified |
| 03/11/1996 | License Modified |
| 02/26/1996 | License Assigned (Full Assignment) |
| 02/27/1995 | License Modified |
| 12/27/1994 | License Modified |
| 04/25/1994 | License Modified |
| 04/07/1994 | License Modified |
| 12/02/1993 | License Modified |
| 04/06/1993 | License Modified |
| 02/14/1992 | License Assigned (Full Assignment) |
| 01/30/1992 | License Modified |
| 12/12/1991 | License Modified |
| 10/25/1990 | License Modified |
| 10/19/1988 | License Modified |
| 09/07/1988 | License Modified |
| 04/17/1988 | License Modified |
| 02/23/1988 | License Modified |
| 08/14/1986 | License Modified |
| 12/19/1985 | License Modified |
| 07/23/1985 | License Modified |
| 03/28/1985 | Application Granted |
| 03/28/1985 | License Modified |