Patents by Inventor Dennis Spooner

Dennis Spooner 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).

  • Serrated-edge knives
    Patent number: 4823467
    Abstract: A serrated-edge knife, the blade of which is provided on one side with a plurality of scallops and on its other side with a plurality of closely spaced serrations, the scallops intersecting the serrations to produce a fine saw-like edge substantially centrally of the thickness of the blade.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: April 25, 1989
    Assignee: Walter Lawrence Manufacturing Limited
    Inventors: Barrie M. Campbell, Dennis Spooner