Granted Patent
Utility
US 4,348,613 · App. 06/192,652
Lamp failure indicating circuit
Inventors:
Ronald F. Hormel, Frederick O. R. Miesterfeld
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Oct 1, 1980
Inventors
Ronald F. Hormel
Frederick O. R. Miesterfeld
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.