| Date | Action |
| 05/28/2003 | License Canceled |
| 10/09/2001 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 07/21/1999 | Internal Correction Applied |
| 08/18/1998 | Internal Correction Applied |
| 08/18/1998 | Internal Correction Applied |
| 08/18/1998 | License Renewed |
| 11/23/1993 | License Modified |
| 07/08/1991 | License Modified |
| 07/04/1991 | License Modified |
| 07/04/1991 | License Modified |
| 06/04/1991 | License Modified |
| 06/03/1991 | License Modified |
| 05/28/1991 | License Modified |
| 08/15/1986 | License Modified |
| 01/31/1986 | License Modified |
| 09/22/1983 | License Modified |
| 08/14/1981 | License Issued |