Granted Patent
Utility
US 6,239,399 · App. 09/392,337
Interrupter with a resistor insertion system having a long insertion time
Inventor:
Michel Perret
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Sep 8, 1999
Inventor
Michel Perret
Assignee (at issue)
Alstom France S.A.
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.