| Date | Action |
| 03/11/2003 | License Canceled |
| 06/01/2002 | Administrative Update Applied |
| 02/22/2002 | License Assigned (Full Assignment) |
| 12/27/2001 | Administrative Update Applied |
| 12/27/2001 | Administrative Update Applied |
| 12/27/2001 | Administrative Update Applied |
| 08/31/2001 | Administrative Update Applied |
| 08/31/2001 | Administrative Update Applied |
| 06/15/2001 | License Assigned (Full Assignment) |
| 03/06/2001 | License Renewed |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 08/24/2000 | License Transferred |
| 06/27/2000 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 09/09/1998 | Internal Correction Applied |
| 01/23/1998 | License Modified |
| 09/20/1996 | License Assigned (Full Assignment) |
| 04/23/1996 | License Assigned (Full Assignment) |
| 08/16/1995 | License Assigned (Full Assignment) |
| 09/26/1994 | License Modified |
| 06/28/1994 | License Transferred |
| 03/08/1994 | License Modified |
| 12/07/1993 | License Modified |
| 08/23/1993 | License Modified |
| 08/18/1993 | License Modified |
| 04/14/1993 | License Modified |
| 07/28/1992 | License Modified |
| 05/29/1991 | License Modified |
| 04/17/1991 | License Renewed |
| 03/26/1991 | License Modified |
| 01/22/1991 | License Modified |
| 01/22/1991 | License Modified |
| 12/26/1990 | License Modified |
| 12/26/1990 | License Modified |
| 07/30/1990 | License Modified |
| 05/10/1990 | License Modified |
| 01/25/1989 | License Modified |
| 01/25/1989 | License Modified |
| 09/07/1988 | License Modified |
| 05/24/1988 | License Modified |
| 01/23/1988 | License Modified |
| 02/26/1986 | Application Granted |