Granted Patent
Utility
US 6,055,819 · App. 09/092,911
Apparatus and method for preventing an evaporating for an air conditioning system form freezing
Inventor:
Hoon KANG
Patented Case
View Patent ↗
Granted: May 2, 2000
Filed: Jun 8, 1998
Inventor
Hoon KANG
Assignee (at issue)
Daewoo Electric Co. Ltd.
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.