Granted Patent
Utility
US 5,653,284 · App. 08/560,750
Heat pipe heat exchanger tubesheet
Inventors:
Robert J. Giammaruti, James Milton Mazel, Darrell Wayne Zahn
Patented Case
View Patent ↗
Granted: Aug 5, 1997
Filed: Nov 21, 1995
Inventors
Robert J. Giammaruti
James Milton Mazel
Darrell Wayne Zahn
Assignee (at issue)
Hudson Products Corporation
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.