Granted Patent
Utility
US 4,236,519 · App. 05/893,938
Corneal punch
Inventors:
Joseph A. La Russa, Richard C. Troutman, Anthony R. Attler
Patented Case
View Patent ↗
Granted: Dec 2, 1980
Filed: Apr 6, 1978
Inventors
Joseph A. La Russa
Richard C. Troutman
Anthony R. Attler
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.