Mark Identification

CHALLENGE THINKING

Serial Number

75144307

Filing Date

Aug 2, 1996

Registration Date

Dec 16, 1997

Trademark by

PEROT SYSTEMS CORPORATION

Classification Information

business consulting services

Advertising and Business

computer related services, namely, computer software design, development, and implementation; computer service bureau operations; computer and telecommunications systems integration, operation and networking; consulting on computerized management information systems and computer technology

Computer and Scientific