Patents by Inventor Leonie Gwendoline Sherriff

Leonie Gwendoline Sherriff 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).

  • Livestock Feeder
    Publication number: 20070289538
    Abstract: The present invention is directed to a livestock feeder where feed in a hopper is diverted to a substantially flat surface through an adjustable opening. Livestock can access the feed on the substantially flat surface by pushing open a feed gate which returns to its initial position after the opening force has been removed. The feed gate prevents contamination of the feed by rain and prevents birds from entering the hopper and eating the feed.
    Type: Application
    Filed: June 6, 2006
    Publication date: December 20, 2007
    Inventors: Jefford Grant Sherriff, Leonie Gwendoline Sherriff