Granted Patent
Utility
US 6,560,409 · App. 09/745,686
Hot water heater stacking reduction control
Inventor:
Henry E. Troost
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Dec 22, 2000
Inventor
Henry E. Troost
Assignee (at issue)
HONEYWELL INTERNATIONAL INC.
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.