Granted Patent
Utility
US 4,949,543 · App. 07/406,064
Tube and fin assembly for heat exchangers in power plants
Inventors:
Andrew J. Cottone, Zalman P. Saperstein
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Sep 12, 1989
Inventors
Andrew J. Cottone
Zalman P. Saperstein
Assignee (at issue)
MODINE MANUFACTURING 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.