Patents by Inventor Jacob G. Doll

Jacob G. Doll 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: 5205059
    Abstract: A display frame having a transparent viewing area comprising a face plate and a back plate provided with a tongue and groove engagement when assembled, adhesive material in the groove whereby to form a sealed chamber within which a picture and/or indicia are displayed, and a desiccant material in communication with the sealed chamber, thereby providing indefinite protection against moisture and dust.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: April 27, 1993
    Inventor: Jacob G. Doll
  • Patent number: 4352258
    Abstract: An adjustable sill and threshold assembly for a door in which a stationary sill base is provided with a longitudinally upwardly opening groove therein and in which a threshold is received in the groove and adapted for adjustable vertical movement therein, including a plurality of generally vertically extending longitudinally spaced adjusting screws which are rotatably captured in the threshold and extending in depending relation, and which are adjustable through apertures in the threshold, and a plurality of sheet metal channel-shaped screw retainer nuts are received and located in the base corresponding to the spacing of the screws and having an aperture for receiving one of said screws therein so that rotation of the screws causes a raising or lowering movement of the threshold.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: October 5, 1982
    Assignee: Pease Company
    Inventors: William M. Bursk, Jacob G. Doll