Patents by Inventor Dallas C. Day

Dallas C. Day 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).

  • Assembly jig for prefabricated door unit
    Patent number: 4146954
    Abstract: An assembly jig for a prefabricated door unit comprises two elongated beam members which may be secured to a support surface in a parallel spaced apart orientation. A pair of holding members are detachably coupled to each of the beam members in a spaced orientation substantially equal to the width of the door unit. Each of the holding members has a recess for receiving a first pair of components of the door frame, thereby allowing the other door frame components to be nailed thereto.
    Type: Grant
    Filed: March 22, 1978
    Date of Patent: April 3, 1979
    Assignee: Interior Wood Products, Inc.
    Inventor: Dallas C. Day