Granted Patent
Utility
US 4,589,372 · App. 06/707,523
Dispensing system having weight dependent control means
Inventor:
Clifford Smith
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Mar 4, 1985
Inventor
Clifford Smith
Assignee (at issue)
The University of Toledo
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.