| Date | Action |
| 01/29/2002 | License Canceled |
| 06/27/2001 | License Transferred |
| 06/26/2001 | License Assigned (Full Assignment) |
| 06/08/2001 | License Transferred |
| 06/01/2001 | Administrative Update Applied |
| 05/31/2001 | Administrative Update Applied |
| 09/23/1999 | License Assigned (Full Assignment) |
| 08/13/1999 | License Converted |
| 10/23/1998 | License Renewed |
| 01/06/1998 | Internal Correction Applied |
| 05/10/1994 | License Modified |
| 01/02/1992 | License Modified |
| 11/23/1991 | License Modified |
| 12/19/1986 | License Modified |
| 12/12/1986 | License Modified |
| 06/01/1983 | License Modified |
| 05/26/1983 | License Modified |
| 03/25/1982 | License Issued |