Granted Patent
Utility
US 6,790,362 · App. 10/044,609
Efficiency mode for water softener
Inventors:
Lance FitzGerald, John VanNewenhizen
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Jan 11, 2002
Inventors
Lance FitzGerald
John VanNewenhizen
Assignee (at issue)
CULLIGAN INTERNATIONAL COMPANY
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.