Patents by Inventor Dale A. Ledman

Dale A. Ledman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Love box
    Patent number: 4194629
    Abstract: A box for use as a token between lovers for assuring their love to each other; the box including an instruction sheet that states the box is filled with love, and no 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 including a case and a removable cover.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: March 25, 1980
    Inventors: Dale A. Ledman, George Spector