ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,475,757, issued on Nov. 18.
"Deposit lock system and method for operating a deposit lock system for a loan object" was invented by Franz Wieth (Puchheim, Germany) and Andreas Filosi (Puchheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for operating a deposit-operated lock system for a borrowed object, in particular for a transport trolley which can be moved by hand. There is also described a suitable deposit-operated lock system. A key that is held in a deposit lock is released when an electric drive drives a carriage that is displaceably mounted on a blocking element in an initial position."
The patent was filed on March 8, 2021,...