Granted Patent
Utility
US 4,501,125 · App. 06/557,983
Temperature conditioning system staging control and method
Inventor:
Doyoung Han
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: Dec 5, 1983
Inventor
Doyoung Han
Assignee (at issue)
The Trane 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.