Granted Patent
Utility
US 6,608,970 · App. 10/166,734
Zoom optical system and camera using the same
Inventor:
Eiji Shirota
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Jun 12, 2002
Inventor
Eiji Shirota
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.