Granted Patent
Utility
US 4,241,371 · App. 06/021,803
Single filament, dual function, vehicle signal lamp
Inventor:
Howard Sage
Patented Case
View Patent ↗
Granted: Dec 23, 1980
Filed: Mar 19, 1979
Inventor
Howard Sage
Assignee (at issue)
Truck-Lite Co., LLC
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.