Patents by Inventor Robert S. Richfield

Robert S. Richfield 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).

  • Greenhouse display bench
    Patent number: 4121377
    Abstract: Greenhouse plants are displayed on horizontal shelves supported between side rails extending at an angle between vertical support posts, the posts being interconnected in pairs between confronting vertical grooves formed in the posts. Each shelf is assembled from elongated sections held in parallel spaced relation to each other by spacers at the longitudinal ends of the shelf which are received within grooves formed in the side rails.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: October 24, 1978
    Inventors: Peter A. Allen, Robert S. Richfield