Granted Patent
Utility
US 4,238,142 · App. 05/970,304
Method and apparatus for examining and photographing the ocular fundus
Inventors:
William D. Richards, Bernard Grolman, Joseph W. Kantorski
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Dec 18, 1978
Inventors
William D. Richards
Bernard Grolman
Joseph W. Kantorski
Assignee (at issue)
American 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.