Granted Patent
Utility
US 6,433,938 · App. 09/716,299
Zoom lens system
Inventor:
Kazuteru Kawamura
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Nov 21, 2000
Inventor
Kazuteru Kawamura
Assignee (at issue)
Olympus Optical 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.