Granted Patent
Utility
US 6,618,128 · App. 10/055,473
Optical speed sensing system
Inventors:
J. Brent Van Voorhis, James C. Robinson, Jason E. Hillard
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Jan 23, 2002
Inventors
J. Brent Van Voorhis
James C. Robinson
Jason E. Hillard
Assignee (at issue)
CSI Technology Co., Ltd.
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.