Patents by Inventor Preston Mitchell

Preston Mitchell 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: D301191
    Type: Grant
    Filed: October 10, 1986
    Date of Patent: May 23, 1989
    Assignee: Essex Industries
    Inventors: John R. Anello, James H. Hock, Preston Mitchell
  • Patent number: D606592
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: December 22, 2009
    Inventor: Preston Mitchell Singer