Granted Patent
Utility
US 5,361,982 · App. 08/090,405
Temperature control system having central control for thermostats
Inventors:
Ronald J. Liebl, Paul W. Madaus
Patented Case
View Patent ↗
Granted: Nov 8, 1994
Filed: Jul 12, 1993
Inventors
Ronald J. Liebl
Paul W. Madaus
Assignee (at issue)
Johnson Service 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.