ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,441, issued on Feb. 3.
"Bilateral retractable band/cord device with handles" was invented by John R. Martinez (New York).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bilateral retractable band/cord device with handles on both ends. Each handle element attaches to a housing member internally consisting of a spring biased retractable spool axel that protracts outwardly or retracts inwardly a shared band/cord element. A locking mechanism on the outside of each housing member locks the shared band/cord element at any length between the handle elements. When the band/cord element is elastic, this embodiment is a self-contained, bilateral, hand-held, mu...