| Date | Action |
| 05/09/2003 | License Canceled |
| 12/24/2002 | License Transferred |
| 12/20/2000 | Administrative Update Applied |
| 12/20/2000 | Administrative Update Applied |
| 12/16/2000 | Administrative Update Applied |
| 12/16/2000 | Administrative Update Applied |
| 12/15/2000 | Administrative Update Applied |
| 08/10/2000 | Administrative Update Applied |
| 07/29/2000 | Administrative Update Applied |
| 05/15/2000 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 02/09/1998 | License Renewed |
| 10/30/1996 | Internal Correction Applied |
| 10/29/1996 | License Assigned (Full Assignment) |
| 04/07/1993 | License Modified |
| 03/18/1991 | License Modified |
| 03/11/1991 | License Modified |
| 11/23/1987 | License Modified |
| 01/17/1986 | License Modified |
| 01/02/1986 | License Modified |
| 03/09/1984 | License Modified |
| 01/09/1983 | License Modified |
| 12/06/1979 | License Modified |