Granted Patent
Utility
US 4,734,823 · App. 06/794,085
Fault current interrupter and explosive disconnector for surge arrester
Inventor:
Francis V. Cunningham
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: Nov 1, 1985
Inventor
Francis V. Cunningham
Assignee (at issue)
Joslyn 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.