Granted Patent
Utility
US 5,484,225 · App. 08/230,905
Traffic channelizing device
Inventor:
Randy Warner
Patented Case
View Patent ↗
Granted: Jan 16, 1996
Filed: Apr 21, 1994
Inventor
Randy Warner
Assignee (at issue)
Production Services Associates, LLC
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.