ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,220,783, issued on Feb. 11.
"Sharpening tool" was invented by Paula J. Crashley (New Tripoli, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein are apparatus and system embodiments that allow a user to sharpen instruments. An apparatus embodiment includes a body with a lower portion and an upper portion, one or more protrusions extending from the lower portion of the body and attached to the upper portion of the body, and a cap configured to be attached to the upper portion of the body. A system embodiment includes a sharpening accessory and a power source, where the sharpening accessory includes a body with a lower portion and an uppe...