Patents by Inventor James T. Porter

James T. Porter 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).

  • Surface bolt
    Patent number: 4021063
    Abstract: A surface bolt adapted to be mounted on an inner or outer surface of a closure member, such as a door or window, the bolt being slidable in guides between positions into and out of engagement with a keeper, the bolt having a recess extending across its outer surface, positioned and dimensioned to be engaged by one of the guides in the locking position of the bolt and to be resiliently and releasably held in such engaged position by a spring housed in the guide.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: May 3, 1977
    Assignee: Leigh Products, Inc.
    Inventor: James T. Porter