United States Patent and Trademark Office OG Notices: 31 July 2007

                                   Erratum

   In the notice of "PATENTS WHICH EXPIRED ON December 19, 2003 DUE TO
FAILURE TO PAY MAINTENANCE FEES" appearing in the Official Gazette of
February 17, 2004, all reference to Patent No. 5,477,132 which issued from
Application No. 08/278,939 should be deleted since the relevant maintenance
fee and applicable surcharge were timely paid in that patent.


                                   Erratum

   In the notice of "PATENTS WHICH EXPIRED ON June 20, 2004 DUE TO FAILURE
TO PAY MAINTENANCE FEES" appearing in the Official Gazette of August 17,
2004, all reference to Patent No. 6,078,854 which issued from Application
No. 09/128,490 should be deleted since the relevant maintenance fee was
timely paid in that patent.


                                   Erratum

   In the notice of "PATENTS WHICH EXPIRED ON January 28, 2007 DUE TO
FAILURE TO PAY MAINTENANCE FEES" appearing in the Official Gazette of March
27, 2007, all reference to Patent No. 6,512,255 which issued from
Application No. 09/841,005 should be deleted since the relevant maintenance
fee was timely paid in that patent.