Granted Patent
Utility
US 4,482,938 · App. 06/412,179
Electrical apparatus with plug-in modules
Inventor:
Alexander R. Norden
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Aug 27, 1982
Inventor
Alexander R. Norden
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.