Patent 11554511 was granted and assigned to Acme United Corporation on January, 2023 by the United States Patent and Trademark Office.
A safety knife functions as both a box cutter and a separate line cutter. A slidable grip is manually displaceable between two stable safety positions. In one safety position, the grip obstructs access to a forwardly projecting blade. In a second safety position, the grip obstructs access to the line cutter.