Patents by Inventor Martin T. McGrath

Martin T. McGrath 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: D296760
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: July 19, 1988
    Assignee: Robert J. Lis
    Inventor: Martin T. McGrath