Service by Publication A petition to cancel the registration identified below having been filed, and the notice of such proceeding sent by certified mail to registrant at the last known address having been returned by the Postal Service as undeliverable, notice is hereby given that unless the registrants listed herein, their assigns or legal representatives, shall enter an appearance within thirty days of this publication, the cancellation will proceed as in the case of default. Computer Site Technologies, Inc., Concord, Calif., Reg. No. 1,857,550, for the mark "RESPONSEWARE", Can. No. 25,541. Tinsley Hancock, Tucson, Ariz., Reg. No. 1,680,442, for the mark "LIFE'S A BALL", Can. No. 24,938. JEAN BROWN Technical Program Manager, Trademark Trial and Appeal Board, for ROBERT M. ANDERSON Deputy Assistant Commissioner for Trademarks