Patents by Inventor David J. Paton

David J. Paton 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).

  • Depth adjustable edger
    Patent number: 7562920
    Abstract: A depth limiting shovel having a blade with a vertically extending slot therein, a depth limiting member having a horizontal element and a vertical element slidable within the slot, the horizontal element extending transversely across the blade. The depth limiting member preferably is adjacent the rear face of the shovel blade.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: July 21, 2009
    Inventor: David J. Paton
  • Depth adjustable edger
    Publication number: 20080169662
    Abstract: A depth limiting shovel having a blade with a vertically extending slot therein, a depth limiting member having a horizontal element and a vertical element slidable within the slot, the horizontal element extending transversely across the blade. The depth limiting member preferably is adjacent the rear face of the shovel blade.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 17, 2008
    Inventor: David J. Paton