Patents by Inventor George W. Mehrer

George W. Mehrer 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: 5181361
    Abstract: A multi-layer shingle is provided, comprising three shingle layers; specifically, a base layer, a secondary layer and a top layer. The base layer and the secondary layer each have butt portions and tab portions. The secondary layer has tab portions that are preferably somewhat shorter than the tab portions of the base layer, showing portions of the tab portions of the base layer beneath the tab portioins of the secondary layer. The top, or third layer is comprised of individual strips that are preferably narrower than the tab portions of the secondary layer, and which preferably extend up into the butt portion of the secondary layer, in overlying relationship therewith. The base layer and secondary layer are secured together by preferably horizontal adhesive stripes. Adhesive also secures the top or third layer strips to the secondary layer, preferably by means of vertical adhesive stripes. Different granule applications are provided for desired aesthetic effects.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: January 26, 1993
    Assignee: CertainTeed Corporation
    Inventors: Marcia G. Hannah, George W. Mehrer, Michael J. Noone, Kermit E. Stahl, Joseph Quaranta