Patents by Inventor Manuel J. Corao

Manuel J. Corao 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).

  • Light concrete monolithic slab
    Patent number: 4053677
    Abstract: A monolithic slab manufactured from light, generally foamy concrete between two layers of reinforced concrete, having smooth, or alternatively corrugated, exterior surfaces, to suit the particular utilization requirements thereof.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: October 11, 1977
    Inventor: Manuel J. Corao