Granted Patent
Utility
US 5,903,398 · App. 08/996,289
Zoom lens system
Inventor:
Cheon Ho Park
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Dec 22, 1997
Inventor
Cheon Ho Park
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.