Granted Patent
Utility
US 5,180,389 · App. 07/798,842
Intraocular-external lens combination system and method of using same
Inventors:
Anthony Donn, Charles J. Koester
Patented Case
View Patent ↗
Granted: Jan 19, 1993
Filed: Nov 25, 1991
Inventors
Anthony Donn
Charles J. Koester
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.