Granted Patent
Utility
US 6,304,321 · App. 09/479,517
Vehicle classification and axle counting sensor system and method
Inventors:
Richard J. Wangler, John T. Myers, Robert L. Gustavson, Robert E. McConnell, II
Patented Case
View Patent ↗
Granted: Oct 16, 2001
Filed: Jan 7, 2000
Inventors
Richard J. Wangler
John T. Myers
Robert L. Gustavson
Robert E. McConnell, II
Assignee (at issue)
Schwartz Electro-Optics, 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.