Patents by Inventor Charles A. Sanna

Charles A. Sanna 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).

  • Patent number: D262985
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: February 9, 1982
    Inventor: Charles A. Sanna
  • Patent number: D266016
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: August 31, 1982
    Inventor: Charles A. Sanna
  • Patent number: D270746
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: September 27, 1983
    Inventor: Charles A. Sanna