Patents by Inventor John P. McMahon

John P. McMahon 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).

  • Refrigerated display case
    Patent number: D280476
    Type: Grant
    Filed: August 16, 1983
    Date of Patent: September 10, 1985
    Assignee: Barker Company, Ltd.
    Inventors: John P. McMahon, J. Patrick McMahon
  • Refrigerated display stand
    Patent number: D289834
    Type: Grant
    Filed: February 7, 1985
    Date of Patent: May 19, 1987
    Assignee: Barker Company, Ltd.
    Inventors: John P. McMahon, J. Patrick McMahon