Patents by Inventor Philip Westley Burman

Philip Westley Burman 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).

  • COMPOSITE PRE-CAST CONCRETE STAIR TREADS AND LANDINGS
    Publication number: 20180274241
    Abstract: A pre-cast concrete stair tread is provided where the stair tread has reinforced corrugated metal embedded within the core of the concrete stair tread. The corrugations are lined up along the elongated direction of the stair tread. Concrete is poured and cured over at least one side of the corrugated metal. Additionally, the pre-cast concrete stair tread may have one or more metal straps fixed on the reinforced corrugated metal in a direction perpendicular to the corrugations and the elongated direction.
    Type: Application
    Filed: October 13, 2017
    Publication date: September 27, 2018
    Inventors: Fred Wallace Opp, JR., William Joseph Webber, JR., David Allen Smith, Philip Westley Burman