United States Patent and Trademark Office OG Notices: 20 Nov 2007

                                   Erratum

   In the notice of "PATENTS WHICH EXPIRED ON March 26, 2000 DUE TO FAILURE
TO PAY MAINTENANCE FEES" appearing in the Official Gazette of June 6, 2000,
all reference to Patent No. 5,501,491 which issued from Application No.
08/237,503 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 August 3, 2007 DUE TO FAILURE
TO PAY MAINTENANCE FEES" appearing in the Official Gazette of September 25,
2007, all reference to Patent No. 5,933,303 which issued from Application
No. 08/981,362 should be deleted since the relevant maintenance fee was
timely paid in that patent.


                                   Erratum

   In the notice of "PATENTS WHICH EXPIRED ON March 18, 2007 DUE TO FAILURE
TO PAY MAINTENANCE FEES" appearing in the Official Gazette of May 15, 2007,
all reference to Patent No. 6,532,700 which issued from Application No.
09/716,122 should be deleted since the relevant maintenance fee was timely
paid in that patent.


                                   Erratum

   In the notice of "PATENTS WHICH EXPIRED ON August 12, 2007 DUE TO
FAILURE TO PAY MAINTENANCE FEES" appearing in the Official Gazette of
October 2, 2007, all reference to Patent No. 6,605,980 which issued from
Application No. 09/963,539 should be deleted since the relevant maintenance
fee was timely paid in that patent.