Patents by Inventor Donald J. Roosa

Donald J. Roosa 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: 6223692
    Abstract: A debris catching trough for debris catching troughs for depending below a bird cage for collecting debris that falls out from the sides of the bird cage. The debris catching trough includes an open trough having spaced apart inner and outer side walls and a bottom wall connecting the inner and outer side walls of the trough together, the inner side wall of the trough defining a central opening. A plurality of spaced apart hangers upwardly extend from the bottom face of the trough to permit hanging of said ring trough beneath a bird cage.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: May 1, 2001
    Inventor: Donald J. Roosa