Granted Patent
Utility
US 4,593,262 · App. 06/715,097
Time delay indicator fuse
Inventor:
David J. Krueger
Patented Case
View Patent ↗
Granted: Jun 3, 1986
Filed: Mar 22, 1985
Inventor
David J. Krueger
Assignee (at issue)
Littelfuse, 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.