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United States Patent and Trademark Office

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Int. Cl.: 10<br />

Prior U.S. Cls.: 26, 39, <strong>and</strong> 44<br />

Reg. No. 2,906,991<br />

<strong>United</strong> <strong>States</strong> <strong>Patent</strong> <strong>and</strong> <strong>Trademark</strong> <strong>Office</strong> Registered Nov. 30, 2004<br />

NORTHGATE TECHNOLOGIES INC. (ILLINOIS<br />

CORPORATION)<br />

600 CHURCH ROAD<br />

ELGIN, IL 60123<br />

FOR: MEDICAL APPARATUS, NAMELY, AN<br />

APPARATUS FOR TREATING GAS FOR USE IN<br />

ENDOSCOPIC SURGERY, IN CLASS 10 (U.S. CLS. 26,<br />

39 AND 44).<br />

TRADEMARK<br />

PRINCIPAL REGISTER<br />

HUMI-FLOW<br />

FIRST USE 12-9-2003; IN COMMERCE 12-9-2003.<br />

SN 76-432,141, FILED 7-18-2002.<br />

JOHN E. MICHOS, EXAMINING ATTORNEY

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