Granted Patent
Utility
US 6,809,656 · App. 09/238,804
Violation alert speed display
Inventors:
Thomas E. Mitchell, William Lee Roberts
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Jan 28, 1999
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.