Patents by Inventor David Tolond

David Tolond 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).

  • Spiral chute
    Patent number: D313298
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: December 25, 1990
    Assignee: The Post Office
    Inventors: Cetin B. Elmas, David Tolond