Granted Patent
Utility
US 5,790,313 · App. 08/585,161
Eyepiece system
Inventor:
Moriyasu Kanai
Patented Case
View Patent ↗
Granted: Aug 4, 1998
Filed: Jan 11, 1996
Inventor
Moriyasu Kanai
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.