Patents by Inventor Frederick Randolph

Frederick Randolph 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).

  • Shirt collar
    Patent number: D436429
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: January 23, 2001
    Inventor: Frederick Randolph
  • Shirt collar
    Patent number: D432289
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: October 24, 2000
    Inventor: Frederick Randolph