Granted Patent
Utility
US 6,449,540 · App. 09/669,449
Vehicle operator performance recorder triggered by detection of external waves
Inventor:
Gary Rayner
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Sep 25, 2000
Inventor
Gary Rayner
Assignee (at issue)
I-Witness, 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.