Granted Patent
Utility
US 4,583,830 · App. 06/267,895
Method and apparatus for measuring the shape of the eye
Inventor:
Otto Wichterle
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: May 28, 1981
Inventor
Otto Wichterle
Assignee (at issue)
Ceskoslovenska akademie ved
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.