Granted Patent
Utility
US 4,146,287 · App. 05/840,176
Lighting and power system and connectors therefor
Inventor:
Nils G. Jonsson
Patented Case
View Patent ↗
Granted: Mar 27, 1979
Filed: Oct 7, 1977
Inventor
Nils G. Jonsson
Assignee (at issue)
National Service Industries, 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.