Granted Patent
Utility
US 5,983,992 · App. 09/239,647
Unit construction plate-fin heat exchanger
Inventors:
Malcolm S. Child, James B. Kesseli, James S. Nash
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Jan 29, 1999
Inventors
Malcolm S. Child
James B. Kesseli
James S. Nash
Assignees (at issue)
NORTHERN RESEARCH AS
Compact Engineering LLC
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.