Patents by Inventor Richard A. Costolnick

Richard A. Costolnick 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).

  • Fire-retardant wall
    Patent number: 4628651
    Abstract: A hollow wall having a plurality of spaced, vertical studs, wallboards affixed to both sides of the plurality of studs, and septum panels disposed within the hollow of the wall, held firmly in place by small pieces of board, with one such piece of board on each side of the septum panels, at each side edge, extending through an opening in a stud.
    Type: Grant
    Filed: August 1, 1985
    Date of Patent: December 16, 1986
    Assignee: National Gypsum Company
    Inventors: Mario P. Morettin, Richard A. Costolnick