Patents by Inventor John W. Perkinson

John W. Perkinson 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).

  • One-handed serving tray
    Patent number: 3941286
    Abstract: A serving tray, having an opening through which at least a portion of the server's hand may be inserted and a support which thrusts upwardly against the wrist and/or forearm materially assists in carrying and balancing the laden tray, has utility for use in situations in which the server must carry and serve from the tray with one hand.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: March 2, 1976
    Inventor: John W. Perkinson