Granted Patent
Utility
US 5,471,297 · App. 08/296,412
Method of and apparatus for measuring optical distortion
Inventor:
Hidehito Tani
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Aug 26, 1994
Inventor
Hidehito Tani
Assignee (at issue)
ASAHI GLASS 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.