Granted Patent
Utility
US 5,436,787 · App. 08/140,678
Surge arrestor unit
Inventor:
Forrest H. Ballinger
Patented Case
View Patent ↗
Granted: Jul 25, 1995
Filed: Oct 21, 1993
Inventor
Forrest H. Ballinger
Assignee (at issue)
Harmon Industries, LLC
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.