Patents by Inventor Henry Patrick Donohue

Henry Patrick Donohue 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).

  • Reflectant foil insulated steel doors
    Patent number: 4118543
    Abstract: A door made up of a grid frame, two sheets of metallic foil and two face skins. The grid frame is made up of laterally and longitudinally extending members. A sheet of foil is supported on each side of the grid frame under the face skins. The door has provision for hinges and a lock.
    Type: Grant
    Filed: November 16, 1976
    Date of Patent: October 3, 1978
    Assignee: Fenestra
    Inventor: Henry Patrick Donohue