U.S. federal trademark · Serial No. 75161483 · Reg. No. 2216645
HDSL digital loop subscriber carrier systems, comprised of central office terminals and remote terminals consisting of central office shelves, remote units, channel units, and alarm units for the central office shelves to provide increased channel capacity over copper wire
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.