Granted Patent
Utility
US 6,434,452 · App. 09/999,461
Track database integrity monitor for enhanced railroad safety distributed power
Inventor:
Robert A. Gray
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Oct 31, 2001
Inventor
Robert A. Gray
Assignee (at issue)
General Electric Company
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.