| Date | Action |
| 04/27/2005 | License Canceled |
| 12/30/2003 | Administrative Update Applied |
| 09/29/2001 | Administrative Update Applied |
| 07/31/2000 | License Transferred |
| 08/13/1999 | License Converted |
| 10/01/1998 | License Renewed |
| 02/11/1997 | License Assigned (Full Assignment) |
| 05/12/1995 | Internal Correction Applied |
| 01/04/1994 | License Modified |
| 12/21/1993 | License Modified |
| 11/18/1993 | License Modified |
| 10/09/1993 | License Modified |
| 10/08/1993 | License Modified |
| 12/16/1988 | License Modified |
| 12/13/1988 | License Modified |
| 11/08/1985 | License Modified |
| 10/07/1985 | License Modified |
| 12/09/1983 | License Modified |
| 11/08/1978 | License Issued |