Granted Patent
Utility
US 4,711,522 · App. 06/781,411
Optical catheter
Inventor:
Ronald L. McCartney
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Sep 27, 1985
Inventor
Ronald L. McCartney
Assignee (at issue)
American Hospital Supply Corp.
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.