Granted Patent
Utility
US 4,288,844 · App. 05/936,240
Electrically focused surgical light
Inventors:
Kenneth J. Fisher, William R. Miller
Patented Case
View Patent ↗
Granted: Sep 8, 1981
Filed: Aug 24, 1978
Inventors
Kenneth J. Fisher
William R. Miller
Assignee (at issue)
American Sterilizer Company
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.