US Patent Issued to AIL International on March 11 for "Structural plates and methods of constructing arch-shaped structures using structural plates" (Canadian Inventors)

ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,390, issued on March 11, was assigned to AIL International Inc. (Sackville, Canada).

"Structural plates and methods of constructing arch-shaped structures using structural plates" was invented by Michael W. Wilson (Sackville, Canada) and Wayne Ford (Moncton, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "Structural plates and methods of constructing arch-shaped structures using structural plates. Structural plates may include a combination of features including: an outer structural plate having adjacent circumferential apertures respectively spaced nominally greater than adjacent circumferential apertures of an inner structural plate; and th...