Patents by Inventor Jan O. Danielsson

Jan O. Danielsson 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).

  • Method of forming concrete floors and product of the method
    Patent number: 4281496
    Abstract: A method for forming a concrete floor as a monolithic unit is disclosed wherein wet concrete mix is deposited and screeded to achieve a generally uniform thickness of concrete with the aggregate being densified or settled to produce a thin upper layer formed substantially from sand and cement, thereafter floating the concrete to substantially remove surface irregularities, and then grinding the upper surface of the concrete floor after it is hardened to produce a flat surface having a "sanded" finish.
    Type: Grant
    Filed: July 6, 1979
    Date of Patent: August 4, 1981
    Inventor: Jan O. Danielsson