Granted Patent
Utility
US 5,239,291 · App. 07/914,820
Multi-function heater element for dual element ferrule fuses
Inventors:
Michael Craig Henricks, Robert Stephen Douglass
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: Jul 15, 1992
Inventors
Michael Craig Henricks
Robert Stephen Douglass
Assignee (at issue)
Cooper Industries Holdings
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.