Patents by Inventor Charles Wayne Sullivan

Charles Wayne Sullivan 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).

  • Calculator support stand
    Patent number: D244332
    Type: Grant
    Filed: June 24, 1975
    Date of Patent: May 17, 1977
    Inventor: Charles Wayne Sullivan
  • Calculator support stand
    Patent number: D245742
    Type: Grant
    Filed: October 15, 1976
    Date of Patent: September 13, 1977
    Inventor: Charles Wayne Sullivan
  • Calculator support stand
    Patent number: D246211
    Type: Grant
    Filed: October 15, 1976
    Date of Patent: November 1, 1977
    Inventor: Charles Wayne Sullivan