Granted Patent
Utility
US 4,466,072 · App. 06/321,619
Automatic fixed-quantity/fixed-time anti-oxidation replenisher control system
Inventor:
Kenneth M. Kaufmann
Patented Case
View Patent ↗
Granted: Aug 14, 1984
Filed: Nov 16, 1981
Inventor
Kenneth M. Kaufmann
Assignee (at issue)
Pako 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.