Granted Patent
Utility
US 6,275,342 · App. 09/020,570
Zoom lens system
Inventors:
Keijiro Sakamoto, Kazuharu Kagoshima
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Jan 27, 1998
Inventors
Keijiro Sakamoto
Kazuharu Kagoshima
Assignee (at issue)
Minolta 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.