Patents by Inventor Marshall R. Hart

Marshall R. Hart 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).

  • Two piece deck mounted anchor chock
    Patent number: D254595
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: April 1, 1980
    Assignee: Attwood Corporation
    Inventor: Marshall R. Hart