Patents by Inventor Davis P. Stone

Davis P. Stone 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: D278624
    Type: Grant
    Filed: June 29, 1983
    Date of Patent: April 30, 1985
    Assignee: Hopkins Engineering Company
    Inventor: Davis P. Stone