Granted Patent
Utility
US 4,427,962 · App. 06/371,689
Low profile transformer bobbin
Inventor:
Arnold J. Liberman
Patented Case
View Patent ↗
Granted: Jan 24, 1984
Filed: Apr 26, 1982
Inventor
Arnold J. Liberman
Assignee (at issue)
Zenith Radio 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.