Granted Patent
Utility
US 6,574,980 · App. 09/668,597
Circuiting arrangement for a closed circuit cooling tower
Inventor:
Frank T. Morrison
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Sep 22, 2000
Inventor
Frank T. Morrison
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.