Granted Patent
Utility
US 4,432,044 · App. 06/247,848
Task lighting system
Inventor:
Terry L. Lautzenheiser
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Mar 26, 1981
Inventor
Terry L. Lautzenheiser
Assignee (at issue)
Steelcase 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.