Granted Patent
Utility
US 5,721,638 · App. 08/735,596
Wide-angle variable magnification viewfinder
Inventor:
Moon-Hyeon Kim
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: Oct 23, 1996
Inventor
Moon-Hyeon Kim
Assignee (at issue)
Samsung Aerospace Industries, 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.