Granted Patent
Utility
US 6,046,686 · App. 08/933,152
Violation alert speed display
Inventors:
Thomas E. Mitchell, William Lee Roberts
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Sep 18, 1997
Inventors
Thomas E. Mitchell
William Lee Roberts
Assignee (at issue)
Kustom Signals, 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.