Granted Patent
Utility
US 4,420,735 · App. 06/284,606
Low current clearing back up fuse
Inventor:
Frank John Muench
Patented Case
View Patent ↗
Granted: Dec 13, 1983
Filed: Jul 20, 1981
Inventor
Frank John Muench
Assignee (at issue)
RTE 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.