Patents by Inventor James J. Liuzza

James J. Liuzza 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).

  • Bar chair for reinforcing rods
    Patent number: 4060954
    Abstract: A chair for supporting reinforcing bars having means for stacking one chair upon another to provide various sizes of chairs and for supporting a single layer of reinforcing bars or multiple layers of reinforcing bars, and having novel means for mounting the chair in soft bedding material such as sand, shell, gravel, mud or the like, which consists of a plate having upstanding studs to receive the tubular legs of the chairs.
    Type: Grant
    Filed: November 3, 1972
    Date of Patent: December 6, 1977
    Inventor: James J. Liuzza