| Date | Action |
| 05/08/2003 | 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 |
| 10/30/1998 | Internal Correction Applied |
| 05/22/1998 | License Renewed |
| 10/30/1996 | Internal Correction Applied |
| 10/29/1996 | License Assigned (Full Assignment) |
| 08/12/1993 | License Modified |
| 12/03/1992 | License Modified |
| 11/24/1992 | License Modified |
| 11/17/1992 | License Modified |
| 11/02/1992 | License Modified |
| 11/15/1990 | License Modified |
| 10/03/1990 | License Modified |
| 10/18/1985 | License Modified |
| 12/09/1983 | License Modified |
| 11/16/1983 | License Modified |
| 03/04/1981 | License Modified |