Mark Identification

CALLIOPE

Serial Number

75550382

Filing Date

Sep 4, 1998

Registration Date

Oct 2, 2001

Trademark by

CREDO PETROLEUM CORPORATION

Classification Information

OIL AND GAS PRODUCTION EQUIPMENT, NAMELY, A MACHINE USED TO EXTRACT OIL AND GAS FROM OIL AND GAS WELLS USING GAS COMPRESSION

Machinery