Granted Patent
Utility
US 4,283,747 · App. 05/972,106
Methods of making a gas tube surge protector
Inventor:
Carl Perkins
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Dec 21, 1978
Inventor
Carl Perkins
Assignee (at issue)
Western Electric Company, Inc.
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.