Granted Patent
Utility
US 6,226,575 · App. 09/571,082
Vehicle detector with power failure information saving
Inventors:
Jason Lu, Christopher Johnson, John W. Hudrlik
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: May 15, 2000
Inventors
Jason Lu
Christopher Johnson
John W. Hudrlik
Assignee (at issue)
RENO A + E
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.