| Date | Action |
| 08/25/2004 | License Canceled |
| 10/18/2003 | Administrative Update Applied |
| 06/12/2003 | Administrative Update Applied |
| 02/06/2002 | Administrative Update Applied |
| 10/10/2001 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 08/05/1999 | Internal Correction Applied |
| 07/30/1999 | License Renewed |
| 07/21/1999 | Internal Correction Applied |
| 07/21/1999 | Internal Correction Applied |
| 07/21/1999 | Internal Correction Applied |
| 08/11/1994 | License Modified |
| 07/15/1994 | License Modified |
| 07/13/1994 | License Modified |
| 07/06/1994 | License Modified |
| 07/09/1990 | License Modified |
| 07/06/1990 | License Modified |
| 05/15/1989 | License Modified |
| 06/03/1987 | License Modified |
| 06/29/1984 | License Modified |
| 04/20/1984 | License Modified |
| 10/20/1982 | License Modified |
| 01/16/1980 | License Modified |