Granted Patent
Utility
US 4,385,812 · App. 06/230,703
Objective lens cover assembly for an operating microscope
Inventors:
Michael Wille, Nicholas E. Sachuk
Patented Case
View Patent ↗
Granted: May 31, 1983
Filed: Feb 2, 1981
Inventors
Michael Wille
Nicholas E. Sachuk
Assignee (at issue)
Surgikos, 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.