US Patent Issued on Sept. 22 for "Marbled cast stone" (New York Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,741,907, issued on Sept. 22.

"Marbled cast stone" was invented by Paul Ackert (Poughkeepsie, N.Y.) and John Ackert (Poughkeepsie, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A marbled cast stone and a method for manufacturing it are described. A dry concrete mixture is provided. Water is added to the dry concrete mixture and mixed in to produce a wet concrete mixture. Glass fibers are added to the wet concrete mixture and mixed in to produce a glass fiber reinforced concrete mixture. An oil-based enamel pigment is added to the glass fiber reinforced concrete mixture and mixed slowly with low agitation until color contrasting marbling occurs to ...