| Date | Action |
| 09/17/2003 | License Canceled |
| 05/07/2002 | Administrative Update Applied |
| 09/08/2001 | License Renewed |
| 03/01/2001 | Administrative Update Applied |
| 04/19/2000 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 03/13/1998 | License Assigned (Full Assignment) |
| 06/27/1997 | Internal Correction Applied |
| 06/16/1997 | Internal Correction Applied |
| 09/20/1996 | Internal Correction Applied |
| 09/19/1996 | License Renewed |
| 12/04/1991 | License Modified |
| 11/08/1991 | License Modified |
| 03/28/1991 | License Modified |
| 06/06/1988 | License Modified |
| 02/03/1984 | License Issued |