Granted Patent
Utility
US 6,442,953 · App. 09/723,137
Apparatus and method for diagnosing performance of air-conditioning systems
Inventors:
Phil Trigiani, Tony Ferraro, Ronald Lee Wheeler
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Nov 27, 2000
Inventors
Phil Trigiani
Tony Ferraro
Ronald Lee Wheeler
Assignee (at issue)
UView Ultraviolet Systems, 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.