Granted Patent
Utility
US 5,816,318 · App. 08/389,218
Combination direct and indirect closed circuit evaporative heat exchanger
Inventor:
Thomas P. Carter
Patented Case
View Patent ↗
Granted: Oct 6, 1998
Filed: Feb 15, 1995
Inventor
Thomas P. Carter
Assignee (at issue)
Baltimore Aircoil Company, 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.