US Patent Issued to EJ USA on Sept. 22 for "Manhole lock system" (Michigan Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,300, issued on Sept. 22, was assigned to EJ USA Inc. (East Jordan, Mich.).

"Manhole lock system" was invented by James R. Allen (Bellaire, Mich.), Collin S. Farmer (East Jordan, Mich.), Kyle Thomas Peters (Charlevoix, Mich.), Scott B. Beal (East Jordan, Mich.), Jeremy I. Johnson (East Jordan, Mich.) and Kevin J. Wright (Boyne City, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A manhole lock system includes a frame positioned over an access opening, a cover movable between a closed position in which the cover extends over the access opening, and an open position in which the access opening is exposed; and a lock mechanism for locking the cov...