Patents by Inventor Gerald F. Juker

Gerald F. Juker 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).

  • Patent number: 4395855
    Abstract: This invention is directed to a novel door frame assembly. More particularly, this invention is directed to a pre-fabricated door frame assembly, the components of which are adjustable and such that the assembly can be used for either right hand or left hand doors and can fit a wide variety of widths and heights of door openings through walls of various thicknesses.
    Type: Grant
    Filed: January 30, 1981
    Date of Patent: August 2, 1983
    Assignee: Windor Sales Limited
    Inventor: Gerald F. Juker