Patents by Inventor Thomas R. Minshull

Thomas R. Minshull 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).

  • Railway car roping staple
    Patent number: 4329927
    Abstract: A roping staple (and lifting lug) especially for securing to the side sill of a railroad car. The roping staple is uniquely provided with the strength and accessibility required for modern day railroading and yet is suitable for economical construction.
    Type: Grant
    Filed: May 9, 1980
    Date of Patent: May 18, 1982
    Assignee: Greenville Steel Car
    Inventor: Thomas R. Minshull