Granted Patent
Utility
US 6,398,192 · App. 09/358,017
Breakaway support post for highway guardrail end treatments
Inventor:
James R. Albritton
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Jul 19, 1999
Inventor
James R. Albritton
Assignee (at issue)
TRN Business Trust
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.