Granted Patent
Utility
US 4,380,358 · App. 06/213,294
Lamp socket
Inventor:
Larry F. Trafford
Patented Case
View Patent ↗
Granted: Apr 19, 1983
Filed: Dec 5, 1980
Inventor
Larry F. Trafford
Assignee (at issue)
Federal Signal Corporation
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.