Concrete beamless building construction

Claim 1

A BEAMLESS BUILDING FLOOR SUPPORTED ON (A) COLUMNS, (1) EACH COLUMN CONSISTING OF PRECAST SECTIONS HAVING AN UPPER AND LOWER END, THE UPPER END OF EACH COLUMN SECTIONS BEING JOINED TO THE LOWER END OF A SUCCEEDING ONE OF THE COLUMN SECTIONS, AND (2) EACH COLUMN SECTIONS BEING OF UNIFORM CROSSSECTION THROUGHTOUT THE LENGTH THEREOF BUT BEING REBATED AT THE UPPER END; (B) RECTANGULAR CANTILEVER SLABS SUPPORTED DIRECTLY BY THE COLUMNS AND MUTUALLY SPACED FROM EACH OTHER TO DEFINE GAPS THEREBETWEEN, (3) EACH CANTILEVER SLABS BEING PRECAST WITH A CENTRAL HOLE OF SMALLER CROSS-SECTION THAN THE CROSSSECTION OF THE COLUMN SECTIONS, (4) THE CANTILEVER SLABS HOLES BEING ALIGNED WITH THE UPPER ENDS OF THE COLUMN SECTIONS AND THE REBATED UPPER ENDS THEREOF CONSISTING SEATS FOR THE CANTILEVER SLABS, AND (5) SAID SLAMP HAVING FLAT UNDERFACES EXTENDING TO SAID COLUMNS;