| Date | Action |
| 02/07/2004 | License Canceled |
| 02/22/2002 | License Modified |
| 05/01/2001 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 08/05/1999 | Internal Correction Applied |
| 07/21/1999 | Internal Correction Applied |
| 07/21/1999 | Internal Correction Applied |
| 07/21/1999 | Internal Correction Applied |
| 11/17/1998 | License Renewed |
| 02/18/1994 | License Modified |
| 02/07/1994 | License Modified |
| 12/27/1990 | License Modified |
| 12/03/1990 | License Modified |
| 11/21/1990 | License Modified |
| 08/16/1985 | License Modified |
| 05/10/1985 | License Modified |
| 01/27/1981 | License Modified |
| 03/05/1980 | License Modified |