Granted Patent
Utility
US 5,640,318 · App. 08/673,578
Forward converter for off-line applications
Inventor:
Ching-Shan Leu
Patented Case
View Patent ↗
Granted: Jun 17, 1997
Filed: Jul 1, 1996
Inventor
Ching-Shan Leu
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.