Granted Patent
Utility
US 4,638,284 · App. 06/678,726
Tubular varistor arrangement
Inventor:
Lionel M. Levinson
Patented Case
View Patent ↗
Granted: Jan 20, 1987
Filed: Dec 5, 1984
Inventor
Lionel M. Levinson
Assignee (at issue)
General Electric Company
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.