On this day in 1980 Dale A. Ledman and George Spector were granted the patent for LOVE BOX. U.S. Patent No. 4,194,629.

This patent is a box used as a token between lovers for assuring their love to each other; the love box includes an instruction sheet that states the box is filled with love, and not matter how often it is opened, it can never be emptied; and to get a little love, the box should be opened for a short time, while to receive all the person’s love it should be left open all the time; the box includes and case and removable cover as well.