IT IS HEREBY CERTIFIED THAT W.R. GRACE &CO., OWNER OF THE ABOVE IDENTIFIED REGISTRATION, HAS PETITIONED FOR THE CANCELLATION OF U.S. CLASSES 1, 16, 37, AND 52; AND WHEREAS, SAID SURRENDER HAS BEEN ENTERED UPON THE RECORDS OF THE PATENT AND TRADEMARK OFFICE; NOW, THEREFORE, U.S. CLASSES 1, 16, 37 AND 52 IN SAID REGISTRATION ARE HEREBY CANCELLED.