Patents by Inventor Leonard D. McCumber

Leonard D. McCumber 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: 6933037
    Abstract: A three-layer asphalt composition shingle where the top layer is of a full width, a middle layer is less than the full width, and a bottom layer has a width shorter than the middle layer. The middle and top layers of the shingle have tabs and cutouts. The tabs of each such layer generally differ in some feature. Moreover, the corresponding tabs between the middle layer and top layer also differ with respect to some feature, such as a lengthwise size, a widthwise size, shape or in color. Each of the three layers includes color zones, and often plural color zones. The different tab features and the different color features of the various layers provide a high degree of randomness to enhance a visual appearance to a roof shingled with such type of shingles.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: August 23, 2005
    Assignee: Tamko Roofing Products
    Inventors: Leonard D. McCumber, Randal J. Jolitz, Virginia K. Coleman
  • Publication number: 20010049002
    Abstract: A three-layer asphalt composition shingle where the top layer is of a full width, a middle layer is less than the full width, and a bottom layer has a width shorter than the middle layer. The middle and top layers of the shingle have tabs and cutouts. The tabs of each such layer generally differ in some feature. Moreover, the corresponding tabs between the middle layer and top layer also differ with respect to some feature, such as a lengthwise size, a widthwise size, shape or in color. Each of the three layers includes color zones, and often plural color zones. The different tab features and the different color features of the various layers provide a high degree of randomness to enhance a visual appearance to a roof shingled with such type of shingles.
    Type: Application
    Filed: September 18, 1997
    Publication date: December 6, 2001
    Applicant: TAMKO ROOFING PRODUCTS
    Inventors: LEONARD D. MCCUMBER, RANDAL J. JOLITZ, VIRGINIA K. COLEMAN