Granted Patent
Utility
US 4,517,544 · App. 06/545,041
Time delay electric fuse
Inventor:
Vernon Spaunhorst
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Oct 24, 1983
Inventor
Vernon Spaunhorst
Assignee (at issue)
MCGRAW-EDISON COMPANY
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.