Granted Patent
Utility
US 5,163,934 · App. 07/081,986
Photorefractive keratectomy
Inventor:
Charles R. Munnerlyn
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Aug 5, 1987
Inventor
Charles R. Munnerlyn
Assignee (at issue)
VISX, Incorporated
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.