Granted Patent
Utility
US 5,207,213 · App. 07/649,544
Laparoscope having means for removing image impeding material from a distal lens
Inventors:
Richard A. Auhll, Richard J. O'Hare, Richard R. Muller, Jr.
Patented Case
View Patent ↗
Granted: May 4, 1993
Filed: Feb 1, 1991
Inventors
Richard A. Auhll
Richard J. O'Hare
Richard R. Muller, Jr.
Assignee (at issue)
Circon 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.