Granted Patent
Utility
US 6,558,316 · App. 09/891,384
Endoscope optical system including composition having durability to a sterilization treatment
Inventors:
Akira Kikuchi, Sayaka Konno, Hiroaki Kinoshita
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Jun 27, 2001
Inventors
Akira Kikuchi
Sayaka Konno
Hiroaki Kinoshita
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.