| Date | Action |
| 06/12/2001 | License Canceled |
| 05/05/2001 | Administrative Update Applied |
| 08/14/1999 | License Converted |
| 03/02/1999 | License Renewed |
| 12/04/1998 | License Assigned (Full Assignment) |
| 11/25/1998 | Internal Correction Applied |
| 05/05/1998 | Internal Correction Applied |
| 10/28/1997 | License Assigned (Full Assignment) |
| 04/10/1997 | License Assigned (Full Assignment) |
| 10/17/1995 | Internal Correction Applied |
| 10/17/1995 | License Assigned (Full Assignment) |
| 06/22/1995 | License Modified |
| 04/26/1994 | License Modified |
| 04/04/1994 | License Modified |
| 03/15/1990 | License Modified |
| 02/03/1990 | License Modified |
| 04/26/1985 | License Issued |