wolf - i may have made a mistake - I think that Nov 15, 2006 is the application date or the date re-exam was entered into the database.
http://portal.uspto.gov/external/portal/!ut/p/_s.7_0_A/7_0_CH/.cmd/ad/.ar/sa.getBib/.ps/N/.c/6_0_69/.ce/7_0_3AB/.p/5_0_341/.d/1?selectedTab=continuitytab&isSubmitted=isSubmitted&dosnum=08484918
if it starts with a "90" it is a re-exam. nevertheless it would have been done long ago, by any number of defendants, if it were worthy to do so.