| Date | Action |
| 03/08/2003 | License Canceled |
| 10/05/2001 | Administrative Update Applied |
| 08/31/2001 | Administrative Update Applied |
| 01/13/2001 | License Renewed |
| 12/24/2000 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 08/05/1999 | Internal Correction Applied |
| 07/20/1999 | Internal Correction Applied |
| 12/07/1998 | License Modified |
| 02/07/1996 | License Renewed |
| 04/03/1991 | License Modified |
| 03/21/1991 | License Modified |
| 02/12/1991 | License Modified |
| 04/04/1986 | License Modified |
| 03/24/1986 | License Modified |
| 05/24/1985 | License Modified |
| 03/08/1985 | License Modified |
| 02/20/1985 | License Modified |
| 12/03/1984 | License Modified |
| 11/30/1984 | License Modified |
| 09/07/1984 | License Modified |
| 12/16/1982 | License Modified |
| 05/05/1981 | License Modified |
| 09/22/1980 | License Modified |
| 06/04/1980 | License Modified |
| 08/15/1979 | License Modified |
| 04/18/1978 | License Modified |
| 07/15/1977 | License Modified |