Granted Patent
Utility
US 5,797,565 · App. 08/730,938
Railway diamond crossing
Inventors:
Alan James Tuningley, Johannes Oswald, Gary Click, Michael Brian Starkey, Tommy Lee
Patented Case
View Patent ↗
Granted: Aug 25, 1998
Filed: Oct 16, 1996
Inventors
Alan James Tuningley
Johannes Oswald
Gary Click
Michael Brian Starkey
Tommy Lee
Assignee (at issue)
VAE NORTRAK NORTH AMERICA, 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.