U.S. federal trademark · Serial No. 73050807 · Reg. No. 1042891
WINDOW OR WALL INSULATION COMPRISED OF PANELS OF GLASS OR PLASTIC BETWEEN WHICH BEADS OF STYROFOAM ARE BLOWN IN OR SUCKED OUT BY MEANS OF A FAN OR COMPRESSED AIR, PERMITTING THE PANELS TO OPEN OR CLOSE BY THERMOSTATIC OR MANUAL REGULATION
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