Granted Patent
Utility
US 4,598,694 · App. 06/689,727
Water heater partition and method
Inventor:
Charles J. Cromer
Patented Case
View Patent ↗
Granted: Jul 8, 1986
Filed: Jan 8, 1985
Inventor
Charles J. Cromer
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.