Granted Patent
Utility
US 5,515,792 · App. 08/501,730
Rail car bridge plate
Inventors:
Robert L. Bullock, Bruce M. Bullock, Dallas S. Drew, Michael C. Burkitt
Patented Case
View Patent ↗
Granted: May 14, 1996
Filed: Jul 12, 1995
Inventors
Robert L. Bullock
Bruce M. Bullock
Dallas S. Drew
Michael C. Burkitt
Assignee (at issue)
STANDARD CAR TRUCK 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.