Granted Patent
Utility
US 5,380,499 · App. 08/076,994
Combined heat exchanger and ammonia injection process
Inventor:
James M. MacInnis
Patented Case
View Patent ↗
Granted: Jan 10, 1995
Filed: Jun 15, 1993
Inventor
James M. MacInnis
Assignee (at issue)
The Babcock & Wilcox 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.