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NOTICE OF ACCEPTANCE AND   ACKNOWLEDGEMENT OF §§8 & 15   DECLARATION   MAILING DATE: Mar 26, 2009 The combined declaration of use and incontestability filed in connection with the registration identified below meets the requirements of Sections 8 and 15 of the Trademark Act, 15 U.S.C. §1058 and 1065.  The combined declaration is accepted and acknowledged.  The registration remains in force. For further information about this notice, visit our website at: http://www.uspto.gov.  To review information regarding the referenced registration, go to http://tarr.uspto.gov. REG NUMBER: 2724172 MARK: XPLORER OWNER: Smith International, Inc.

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UNITED STATES PATENT AND TRADEMARK OFFICE COMMISSIONER FOR TRADEMARKS P.O. BOX 1451 ALEXANDRIA, VA  22313-1451 FIRST-CLASS MAIL U.S POSTAGE PAID Sean C. Henkel Smith International, Inc. 16740 Hardy Street Patent Services Houston, TX   77032