Granted Patent
Utility
US 6,213,526 · App. 09/430,584
Bumper integrated school bus safety arm
Inventors:
Eric D. Swanger, Brad A. Hively, Andrew J. Zielinski, Frank H. Stanhope
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Oct 29, 1999
Inventors
Eric D. Swanger
Brad A. Hively
Andrew J. Zielinski
Frank H. Stanhope
Assignee (at issue)
Navistar International Transportation
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.