Granted Patent
Utility
US 4,533,895 · App. 06/623,824
Time delay fuse
Inventors:
Joseph W. Kowalik, David J. Krueger
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Jun 22, 1984
Inventors
Joseph W. Kowalik
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.