Granted Patent
Utility
US 5,684,441 · App. 08/609,151
Reverse power protection circuit and relay
Inventors:
Roger R. Graeber, Grant D. Marr, Darrell Richardson
Patented Case
View Patent ↗
Granted: Nov 4, 1997
Filed: Feb 29, 1996
Inventors
Roger R. Graeber
Grant D. Marr
Darrell Richardson
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.