Granted Patent
Utility
US 4,700,258 · App. 06/887,355
Lightning arrester system for underground loop distribution circuit
Inventor:
Donald J. Farmer
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Jul 21, 1986
Inventor
Donald J. Farmer
Assignee (at issue)
Colt Industries, 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.