US Patent Issued on Sept. 8 for "Illuminated ruler and manufacture method thereof" (California Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,847, issued on Sept. 8.

"Illuminated ruler and manufacture method thereof" was invented by Carolina Moore (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ruler according to the present disclosure comprises a ruler portion and a lighting portion. The ruler portion includes a light guide having a flat first bottom surface and a marking portion formed on the light guide. The lighting portion is coupled with an entry side of the light guide and configured to emit light to enter the light guide through the entry side. The lighting portion has a flat second bottom surface flush with the first bottom surface when the lighting portion is coupled...