Granted Patent
Utility
US 4,135,231 · App. 05/795,645
Surgical light assembly
Inventor:
Kenneth J. Fisher
Patented Case
View Patent ↗
Granted: Jan 16, 1979
Filed: May 10, 1977
Inventor
Kenneth J. Fisher
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.