(10) US 9,464,437 B1
(57) The precast I-beam concrete panels include an elongate I-beam embedded in an elongate concrete beam that has a platform or panel parallel to the upper flange of the I-beam. The I-beam is longer than the concrete beam so that opposite end portions of the I-beam project past the corresponding ends of the concrete beam. During installation, the projecting end portions of the I-beam may be seated into corresponding notches or recesses in spaced support beams. The sides of the concrete beam may be flat for abutting engagement with adjacent...