United States Patent and Trademark Office OG Notices: 22 May 2007

                                   Erratum


   In the notice of "PATENTS WHICH EXPIRED ON March 8, 2006 DUE TO FAILURE
TO PAY MAINTENANCE FEES" appearing in the Official Gazette of May 2, 2006,
all reference to Patent No. 5,293,155 which issued from Application No.
07/681,758 should be deleted since the relevant maintenance fee and
applicable surcharge were timely paid in that patent.