Granted Patent
Utility
US 4,564,270 · App. 06/510,494
Objective lens cover for an operating microscope
Inventor:
Michael T. Willie
Patented Case
View Patent ↗
Granted: Jan 14, 1986
Filed: Jul 5, 1983
Inventor
Michael T. Willie
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.