Granted Patent
Utility
US 5,343,259 · App. 07/768,360
Glasses
Inventor:
Eiichi Nakanishi
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Sep 30, 1991
Inventor
Eiichi Nakanishi
Assignee (at issue)
Nakanishi Optical Corporation
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.