Granted Patent
Utility
US 5,628,628 · App. 08/380,709
Combustion device of fan heater
Inventors:
In Kyu Kim, Young Soo Kim, Seock Joon Kim, Sung-Ho Shim
Patented Case
View Patent ↗
Granted: May 13, 1997
Filed: Jan 30, 1995
Inventors
In Kyu Kim
Young Soo Kim
Seock Joon Kim
Sung-Ho Shim
Assignee (at issue)
Goldstar 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.