Granted Patent
Utility
US 4,216,819 · App. 06/015,426
Enhanced condensation heat transfer device and method
Inventor:
Frank Notaro
Patented Case
View Patent ↗
Granted: Aug 12, 1980
Filed: Feb 26, 1979
Inventor
Frank Notaro
Assignee (at issue)
Union Carbide 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.