Patents by Inventor Joseph John Merryfield, Jr.

Joseph John Merryfield, Jr. 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).

  • Roof shingle alignment system
    Patent number: 7617613
    Abstract: A roof shingle alignment system employs three separate types of line bar tools for setting aligned chalklines. The first line bar is used to strike chalklines vertically on roof surfaces and for setting the starter horizontal chalkline. The second line bar is placed on the starter chalkline and is used to strike horizontal chalklines across the roof surface. A third line bar is configured to be placed on the peak of the roof for setting horizontal chalklines near the roof's ridge for cutout and hip cap lines.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: November 17, 2009
    Inventor: Joseph John Merryfield, Jr.