| Date | Action |
| 08/27/2004 | License Canceled |
| 05/05/2004 | License Assigned (Full Assignment) |
| 03/18/2004 | License Assigned (Full Assignment) |
| 06/06/2003 | License Assigned (Full Assignment) |
| 09/14/2002 | Administrative Update Applied |
| 12/02/2001 | License Transferred |
| 06/22/2001 | License Assigned (Full Assignment) |
| 05/11/2001 | Administrative Update Applied |
| 08/13/1999 | License Converted |
| 08/19/1998 | Internal Correction Applied |
| 08/19/1998 | License Renewed |
| 05/19/1994 | License Modified |
| 04/09/1994 | License Modified |
| 04/05/1994 | License Modified |
| 06/16/1989 | License Issued |
| 10/05/1984 | License Modified |
| 09/11/1979 | License Renewed |