Granted Patent
Utility
US 5,605,532 · App. 08/546,271
Fog-free endoscope
Inventor:
Richard E. Schermerhorn
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: Oct 20, 1995
Inventor
Richard E. Schermerhorn
Assignee (at issue)
Vista Medical Technologies, Inc.
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.