Patents by Inventor Charles E. Spalt

Charles E. Spalt 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).

  • Wood and coal burning stove
    Patent number: D253780
    Type: Grant
    Filed: November 28, 1977
    Date of Patent: December 25, 1979
    Inventors: Larry A. Schwartz, Charles E. Spalt