Granted Patent
Utility
US 5,558,489 · App. 08/418,100
Mass feeder for product delivery system
Inventors:
Frank N. Moncrief, David R. Bacco, Charles McNamara, Dwight L. Smith, Colin P. Ford
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Apr 6, 1995
Inventors
Frank N. Moncrief
David R. Bacco
Charles McNamara
Dwight L. Smith
Colin P. Ford
Assignee (at issue)
Riverwood International Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.