Patents by Inventor Calvin A. Charboneau

Calvin A. Charboneau 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
    Patent number: 5595140
    Abstract: A livestock feeder with the capability of removing the end walls and folding the side walls inwards. The livestock feeder has hinged side rails allowing them to be folded inwards. The livestock feeder also has a bottom bed that is not affected by weather and can be easily replaced. A removable polyethylene floor increases the life of the livestock feeder. When the end walls are removed and the side walls are folded, the feeder has a compact shape permitting efficient shipping by conventional transportation means.
    Type: Grant
    Filed: March 6, 1996
    Date of Patent: January 21, 1997
    Assignee: Charboneau Enterprises, Inc.
    Inventor: Calvin A. Charboneau
  • Livestock feeder
    Patent number: D361648
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: August 22, 1995
    Inventor: Calvin A. Charboneau