Granted Patent
Utility
US 5,704,420 · App. 08/691,843
Finned tube heat exchanger
Inventor:
Jong Woon Kim
Patented Case
View Patent ↗
Granted: Jan 6, 1998
Filed: Aug 1, 1996
Inventor
Jong Woon Kim
Assignee (at issue)
Daewoo Electronics 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.