Granted Patent
Utility
US 6,745,827 · App. 10/255,579
Heat exchanger
Inventors:
Jun-Kang Lee, Kil Sang Jang, In-Cheol Han, Chang Ho Park, Yong-Gwi Ahn, Hwang-Jae Ahn
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Sep 27, 2002
Inventors
Jun-Kang Lee
Kil Sang Jang
In-Cheol Han
Chang Ho Park
Yong-Gwi Ahn
Hwang-Jae Ahn
Assignee (at issue)
HALLA CLIMATE CONTROL CORP.
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.