Granted Patent
Utility
US 4,064,413 · App. 05/615,437
Relay adapter circuit for trailer lamps
Inventor:
Poul Andersen
Patented Case
View Patent ↗
Granted: Dec 20, 1977
Filed: Sep 22, 1975
Inventor
Poul Andersen
Assignee (at issue)
Chrysler Group 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.